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AMS Sectional Meeting Full Program

Current as of Saturday, October 29, 2005 01:24:04

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Program  |  Deadlines  |  Registration/Housing/Etc.  |  Special Event or Lecture  |  Inquiries:  meet@ams.org

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2005 Fall Central Section Meeting
Lincoln, NE, October 21-23, 2005
Meeting #1011

Associate secretaries:
Susan J Friedlander, AMS susan@math.northwestern.edu

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Friday October 21, 2005

• Friday October 21, 2005, 8:30 a.m.-10:50 a.m.
  Special Session on Randomness in Computation, I
  Room 347, Avery Hall
  Organizers:
  John M. Hitchcock, University of Wyoming jhitchco@cs.uwyo.edu
  Aduri Pavan, Iowa State University pavan@cs.iastate.edu
  Vinodchandran Variyam, University of Nebraska-Lincoln vinod@cse.unl.edu
  

  • 8:30 a.m.
    Quadratic Lower Bounds on Matrix Rigidity.
    Satyanarayana V. Lokam*, Microsoft Research, Redmond, WA
    (1011-68-177)
  • 9:00 a.m.
    Reconstructive Dispersers and Hitting Set Generators.
    Christopher Umans*, Computer Science Dept., Caltech, Pasadena CA
    (1011-68-269)
  • 9:30 a.m.
    If NP languages are hard on the worst-case then it is easy to find their hard instances.
    Dan Gutfreund, Hebrew University
    Ronen Shaltiel, University of Haifa
    Amnon Ta-Shma*, Tel-Aviv University
    (1011-68-355)
  • 10:00 a.m.
    Dimensions of Copeland-Erd\"os Sequences.
    Jack H. Lutz*, Department of Computer Science, Iowa State University
    (1011-68-292)
  • 10:30 a.m.
    Finite-State Dimension and Relative Frequencies.
    Xiaoyang Gu*, Department of Computer Science, Iowa State University
    (1011-68-337)
• Friday October 21, 2005, 12:00 p.m.-5:00 p.m.
  Meeting Registration
  Room 13B, Avery Hall
• Friday October 21, 2005, 12:00 p.m.-5:00 p.m.
  Exhibit and Book Sale
  Room 13B, Avery Hall
• Friday October 21, 2005, 1:45 p.m.-3:40 p.m.
  Special Session on Combinatorial Matrix Theory, I
  Room 120, Burnett Hall
  Organizers:
  Leslie Hogben, Iowa State University lhogben@iastate.edu
  Bryan L. Shader, University of Wyoming bshader@uwyo.edu
  

  • 1:45 p.m.
    Sign patterns, inverses, and generalized inverses.
    Thomas Britz, Technical University of Denmark
    Dale Olesky, Department of Computer Science, University of Victoria, Canada
    Pauline vanden Driessche, Department of Mathematics, University of Victoria, Canada
    Bryan L. Shader*, Mathematics Department, University of Wyoming
    (1011-15-137)
  • 2:15 p.m.
    On Spectrally Arbitrary Patterns.
    Michael S. Cavers, Univeristy of Waterloo
    In-Jae Kim, University of Wyoming
    Bryan L. Shader, University of Wyoming
    Kevin N. Vander Meulen*, Redeemer University College
    (1011-15-106)
  • 2:45 p.m.
    Spectrally Arbitrary Zero-Nonzero Patterns.
    Judith J McDonald*, Washington State University
    (1011-15-159)
  • 3:15 p.m.
    Ray Patterns, Determinants and Inversion.
    Jeffrey Stuart*, Pacific Lutheran University
    (1011-15-179)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Geometry of Differential Equations, I
  Room 304, Oldfather Hall
  Organizers:
  Jeanne Nielsen Clelland, University of Colorado Jeanne.Clelland@Colorado.EDU
  Irina A. Kogan, North Carolina State University iakogan@ncsu.edu
  Zhijun Qiao, University of Texas-Pan American qiao@utpa.edu
  

  • 1:45 p.m.
    On the two-phase Stefan problem.
    Marianne K. Korten, Kansas State University
    Charles N. Moore*, Kansas State University
    (1011-35-15)
  • 2:15 p.m.
    Existence, uniqueness and regularity of the free boundary in the Hele-Shaw problem with a degenerate phase.
    Ivan Blank, Worcester Polytechnic Institute
    Marianne Korten*, Kansas State University
    Charles Moore, Kansas State University
    (1011-35-16)
  • 2:45 p.m.
    The Finsler-Landsberg problem again.
    Gerard Thompson*, Department of Mathematics, The University of Toledo, 2801 W Bancroft St, Toledo, OH 43606
    (1011-53-302)
  • 3:15 p.m.
    Partial Differential Equations which Admit Integrable Systems.
    Paul Bracken*, University of Texas
    (1011-53-26)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Nonlinear Analysis and Control of Partial Differential Equations, I
  Room 204, Burnett Hall
  Organizers:
  George Avalos, University of Nebraska-Lincoln gavalos@math.unl.edu
  Petronela Radu, University of Nebraska-Lincoln pradu@math.unl.edu
  Mohammad A. Rammaha, University of Nebraska-Lincoln rammaha@math.unl.edu
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  

  • 1:45 p.m.
    Null Boundary Control: Heat and Schrodinger Equations in One Shot?
    Walter Littman*, University of Minnesota
    (1011-35-198)
  • 2:15 p.m.
    Global Stabilization of the Generalized Korteweg-de Vries Equation Posed on a Finite Domain.
    Lionel Rosier, Institut Elie Cartan, Universit\'e Nancy I
    Bingyu Zhang*, Departmental of mathematical Sciences, University of Cincinnati
    (1011-35-241)
  • 2:45 p.m.
    An Overview of Modelling Challenges for a Nonlinear Plate-Beam Model.
    Mary Ann Horn*, Vanderbilt University
    (1011-93-370)
  • 3:15 p.m.
    Analyticity and Stability of Semigroups of Multilayer Mead-Markus Beam and Plate Models.
    Scott Hansen*, Iowa State University
    George Avalos, University of Nebraska-Lincoln
    (1011-93-126)
• Friday October 21, 2005, 1:45 p.m.-3:40 p.m.
  Special Session on Mathematical Education of Teachers, I
  Room 119, Burnett Hall
  Organizers:
  W. James Lewis, University of Nebraska-Lincoln jlewis@math.unl.edu
  Cheryl Lynn Olsen, Shippensburg University of Pennsylvania clolse@ship.edu
  Ira J. Papick, University of Missouri-Columbia papicki@missouri.edu
  

  • 1:45 p.m.
    The Mathematics Semester: A Mathematics - Mathematics Education Partnership at the University of Nebraska - Lincoln.
    Ruth M. Heaton*, University of Nebraska-Lincoln
    Jim Lewis, University of Nebraska-Lincoln
    (1011-97-300)
  • 2:15 p.m.
    PMET at PCMI.
    William McCallum*, University of Arizona
    (1011-97-230)
  • 2:45 p.m.
    GeoSET: An Inquiry-based Geometry Curriculum for Prospective Elementary Teachers.
    John Wolfe*, Oklahoma State University
    (1011-97-375)
  • 3:15 p.m.
    Integrating children's thinking in a mathematics content course for future elementary teachers.
    Ekaterina Lioutikova*, Saint Joseph College
    (1011-97-210)
• Friday October 21, 2005, 1:45 p.m.-3:30 p.m.
  Special Session on K-Theory and Algebraic Cycles, I
  Room 109, Avery Hall
  Organizers:
  Christian Haesemeyer, University of Illinois at Urbana-Champaign chh@math.uiuc.edu
  Gregory Grant Piepmeyer, University of Nebraska-Lincoln gpiepmey@math.unl.edu
  Mark Edward Walker, University of Nebraska-Lincoln mwalker@math.unl.edu
  

  • 1:45 p.m.
    Semi-topological K-theory of rationally connected threefolds.
    Mircea Voineagu*, Northwestern University
    (1011-19-280)
  • 2:15 p.m.
    Etale BP, with applications to quadratic forms.
    Daniel C Isaksen*, Wayne State University
    (1011-55-213)
  • 2:45 p.m.
    Cohomology of Bifunctors.
    Vincent Franjou, Laboratoire Jean Leray, Universit\'e de Nantes
    Eric M. Friedlander*, Department of Mathematics, Northwestern University
    (1011-18-207)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Calculus of Variations, I
  Room 203, Burnett Hall
  Organizers:
  Mikil Foss, University of Nebraska-Lincoln mfoss@math.unl.edu
  Giovanni Leoni, Carnegie Mellon University giovanni@andrew.cmu.edu
  

  • 1:45 p.m.
    New variational principles for models of dielectric breakdown and polycrystal plasticity.
    Marian Bocea*, University of Utah
    (1011-49-46)
  • 2:15 p.m.
    Variational Methods in the Study of Imaging, Foams, Quantum Dots ... and More.
    Irene Fonseca*, Carnegie Mellon University
    (1011-49-39)
  • 2:45 p.m.
    On the extension of Lipschitz maps.
    B. Dacorogna*, Ecole Polytechnique Federale de Lausanne
    (1011-35-378)
  • 3:15 p.m.
    Necessary Conditions for a Minimum at a Radial Cavitating Singularity in Nonlinear Elasticity.
    S. J. Spector*, Southern Illinois University Carbondale
    J. Sivaloganathan, University of Bath
    (1011-49-41)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Undergraduate Research, I
  Room 110, Avery Hall
  Organizers:
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  Gordon S. Woodward, University of Nebraska-Lincoln gwoodwar@math.unl.edu
  

  • 1:45 p.m.
    Energy Measures on the Sierpinski Gasket.
    Jonas Azzam*, University of Nebraska-Lincoln
    (1011-30-310)
  • 2:15 p.m.
    The Tree Congestion of Graphs.
    Diana Carr*, Central College, Pella, IA
    (1011-05-329)
  • 2:45 p.m.
    Patterns in Genetic Data.
    Leanne Hicks*, University of Nebraska-Lincoln
    Brian Van Koten, Pitzer College
    Aya Mitani, Pitzer College
    (1011-92-357)
  • 3:15 p.m.
    A Birfurcation in the two by two linear system.
    Steven Spriggs*, University of Nebraska-Lincoln
    (1011-34-352)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Universal Algebra and Order, I
  Room 208, Oldfather Hall
  Organizers:
  Jonathan D. Farley, Harvard University lattice@math.harvard.edu
  John William Snow, Sam Houston State University jsnow@shsu.edu
  Japheth L. M. Wood, Chatham College jwood@chatham.edu
  

  • 1:45 p.m.
    Algebraic characterizations for topological separation properties.
    Wolfram Bentz*, University of Waterloo
    (1011-06-130)
  • 2:15 p.m.
    Relation Algebras and Weak Representationis.
    Jeremy F Alm*, Iowa State University
    (1011-03-349)
  • 2:45 p.m.
    Message Authentication Codes and Quasigroup.
    Kristen Meyer*, Iowa State University
    (1011-17-168)
  • 3:15 p.m.
    Duality for central algebras.
    Jonathan D.H. Smith*, Department of Mathematics, Iowa State University
    (1011-08-173)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Scattering and Spectral Problems in Geometry, I
  Room 307, Oldfather Hall
  Organizers:
  Peter A. Perry, University of Kentucky perry@ms.uky.edu
  Alejandro Uribe, University of Michigan uribe@umich.edu
  

  • 2:15 p.m.
    Some Results Concerning Periodic Operators in High Contrast Media.
    J L Selden*, University of Northern Iowa
    (1011-35-360)
  • 2:45 p.m.
    Exotic expansions and pathological properties of $\zeta$-functions on conic manifolds.
    Paul Loya*, Binghamton University (SUNY)
    Klaus Kirsten, Baylor University
    Jinsung Park, Korea Institute for Advanced Study
    (1011-58-91)
  • 3:15 p.m.
    Rays of minimal growth for elliptic cone operators.
    Juan B. Gil, Penn State Altoona
    Thomas Krainer, Univerist\"at Potsdam, Germany
    Gerardo A. Mendoza*, Temple University
    (1011-58-89)
• Friday October 21, 2005, 1:45 p.m.-3:30 p.m.
  Special Session on Commutative Algebra and Representation Theory of Noetherian Rings, I
  Room 106, Avery Hall
  Organizers:
  Lars Winther Christensen, University of Nebraska-Lincoln winther@math.unl.edu
  Srikanth B. Iyengar, University of Nebraska-Lincoln iyengar@math.unl.edu
  Sean M. Sather-Wagstaff, California State University, Dominguez Hills swagstaff@math.unl.edu
  Roger A. Wiegand, University of Nebraska-Lincoln rwiegand@math.unl.edu
  Sylvia Margaret Wiegand, University of Nebraska-Lincoln swiegand@math.unl.edu
  

  • 1:45 p.m.
    Linkage theory of monomial ideals.
    Craig Huneke*, University of Kansas
    Bernd Ulrich, Purdue University
    (1011-13-147)
  • 2:45 p.m.
    Cohen-Macaulay Endomorphism Rings.
    Graham J Leuschke*, Syracuse University
    (1011-13-340)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Recent Progress in Operator Algebras, I
  Room 205, Burnett Hall
  Organizers:
  Allan P. Donsig, University of Nebraska-Lincoln adonsig@math.unl.edu
  David R. Pitts, University of Nebraska-Lincoln dpitts@math.unl.edu
  

  • 1:45 p.m.
    Extension and Dilation Theorems for Operators Satisfying Relations.
    David Opela*, Dept. of Mathematics, Washington University in St. Louis
    (1011-47-114)
  • 2:15 p.m.
    Equivalence of groupoids associated to higher-rank graphs with and without sources.
    Cynthia Farthing*, University of Nebraska, Lincoln
    (1011-46-124)
  • 2:45 p.m.
    Tensor algebras of C*-correspondences and their C*-envelopes.
    Elias Katsoulis*, Department of Mathematics, East Carolina University
    David Kribs, Department of Mathematics, University of Guelph
    (1011-47-109)
  • 3:15 p.m.
    Derivations for a matrix function algebra.
    Benton L Duncan*, North Dakota State University
    (1011-47-80)
• Friday October 21, 2005, 1:45 p.m.-3:30 p.m.
  Special Session on Mathematical and Engineering Aspects of Coding Theory, I
  Room 121, Burnett Hall
  Organizers:
  Lance Perez, University of Nebraska-Lincoln lperez@unl.edu
  Judy Walker, University of Nebraska-Lincoln jwalker@math.unl.edu
  

  • 1:45 p.m.
    Mathematical Topics in Coding Theory.
    Vera Pless*, University of Illinois at Chicago
    (1011-05-127)
  • 2:45 p.m.
    Communication Channel Models and Their Implications for Error Control.
    Thomas E Fuja*, University of Notre Dame
    (1011-94-59)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Dynamic Equations on Time Scales, I
  Room 203, Oldfather Hall
  Organizers:
  Lynn H. Erbe, University of Nebraska-Lincoln lerbe@math.unl.edu
  Allan C. Peterson, University of Nebraska-Lincoln apeterso@math.unl.edu
  

  • 1:45 p.m.
    Limits of Sturm-Liouville Eigenvalues When the Domain Shrinks to a Point.
    Anton Zettl*, Northern Illinois University
    Qingkai Kong, Northern Illinois University
    Hongyou Wu, Northern Illinois University
    (1011-34-160)
  • 2:15 p.m.
    Asymptotics of some $q$-exponentials --- are they always of order zero?
    Moritz Simon*, Institute of Biomathematics and Biometry; GSF - National Research Center for Environment and Health; Neuherberg, Germany
    (1011-33-123)
  • 2:45 p.m.
    Discrete Diffusion Equations.
    Andreas L. Ruffing*, Department of Mathematics, Munich University of Technology, Garching, Germany
    Maria Meiler, Department of Mathematics, Munich University of Technology, Garching, Germany
    (1011-39-363)
  • 3:15 p.m.
    Finite Element Analysis of Quasistatic Variational Inequalities with Applications in Elastoplasticity and Contact Mechanics.
    Weimin Han*, Department of Mathematics, University of Iowa
    (1011-65-08)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Geometric Methods in Group Theory and Semigroup Theory, I
  Room 107, Burnett Hall
  Organizers:
  Susan M. Hermiller, University of Nebraska-Lincoln smh@math.unl.edu
  John C. Meakin, University of Nebraska-Lincoln jmeakin@math.unl.edu
  Zoran Sunik, Texas A&M University sunik@math.tamu.edu
  

  • 1:45 p.m.
    Hanoi towers, automaton groups and branch groups.
    R I Grigorchuk, Texas A&M University
    Z Sunik*, Texas A&M University
    (1011-20-87)
  • 2:15 p.m.
    Groups of finite type.
    R I Grigorchuk*, Texas A&M University
    (1011-20-92)
  • 2:45 p.m.
    Profinite groups, profinite trees, Stallings foldings and finite monoids.
    Karl Auinger, University of Vienna
    Benjamin Steinberg*, Carleton University
    (1011-20-142)
  • 3:15 p.m.
    Groups acting on tree-graded spaces.
    Mark Sapir*, Vanderbilt University
    (1011-20-268)
• Friday October 21, 2005, 1:45 p.m.-3:05 p.m.
  Special Session on Randomness in Computation, II
  Room 347, Avery Hall
  Organizers:
  John M. Hitchcock, University of Wyoming jhitchco@cs.uwyo.edu
  Aduri Pavan, Iowa State University pavan@cs.iastate.edu
  Vinodchandran Variyam, University of Nebraska-Lincoln vinod@cse.unl.edu
  

  • 1:45 p.m.
    On the Complexity of Numerical Analysis.
    Eric Allender*, Rutgers University
    Peter Buergisser, University of Paderborn
    Johan Kjeldgaard-Pedersen, PA Consulting Group, Copenhagen
    Peter Bro Miltersen, University of Aarhus
    (1011-68-219)
  • 2:15 p.m.
    Stability and chaos in elections (with applications in mathematics and computer science).
    Ryan W. O'Donnell*, Microsoft Research
    (1011-60-381)
  • 2:45 p.m.
    Pseudorandom bits for low complexity classes: new results and applications.
    Emanuele Viola*, Harvard University
    (1011-68-277)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Graph Theory, I
  Room 209, Oldfather Hall
  Organizers:
  Andrew J. Radcliffe, University of Nebraska-Lincoln jradclif@math.unl.edu
  Zsuzsanna Szaniszlo, Valparaiso University zsuzsanna.szaniszlo@valpo.edu
  Jonathan Cutler, University of Nebraska-Lincoln jcutler@math.unl.edu
  

  • 1:45 p.m.
    On a Problem of Horak.
    Jonathan Cutler*, University of Nebraska-Lincoln
    (1011-05-192)
  • 2:15 p.m.
    More on Defensive Alliances in Graphs.
    Grady Bullington, University of Wisconsin Oshkosh
    Steven J Winters, University of Wisconsin Oshkosh
    Linda Eroh*, University of Wisconsin Oshkosh
    (1011-05-244)
  • 2:45 p.m.
    New Families of Isoperimetric Graphs.
    Sergei L Bezrukov*, University of Wisconsin-Superior
    (1011-05-369)
  • 3:15 p.m.
    Generalized Tur\'an Theorem.
    Yoshiharu Kohayakawa, Universidade de S\~{a}o Paulo, Brazil
    Vojtech R\"odl, Emory University
    Mathias Schacht, Humboldt-Universit\"at zu Berlin, Germany
    Papa Amar Sissokho, Illinois State University
    Jozef Skokan*, Universidade de S\~{a}o Paulo, Brazil
    (1011-05-83)
• Friday October 21, 2005, 1:45 p.m.-3:35 p.m.
  Special Session on Mathematical Ecology, I
  Room 118, Avery Hall
  Organizers:
  David Logan, University of Nebraska-Lincoln dlogan@math.unl.edu
  William Robert Wolesensky, College of St. Mary wwolesensky@CSM.edu
  

  • 1:45 p.m.
    Space: the final frontier of control theory in application to natural resource management.
    Louis J. Gross*, University of Tennessee
    (1011-92-372)
  • 2:45 p.m.
    Modelling the Evolution of Life Cycle Timing.
    James Powell*, Utah State University
    (1011-92-391)
  • 3:15 p.m.
    Temperature Induced Variations in Prey Foraging and Predation.
    William R Wolesensky*, College of Saint Mary
    J David Logan, University of Nebraska
    (1011-92-353)
• Friday October 21, 2005, 2:45 p.m.-3:05 p.m.
  Special Session on Analysis of Partial Differential and Integral Equations, I
  Room 309, Oldfather Hall
  Organizers:
  Congming Li, University of Colorado Congming.Li@colorado.edu
  

  • 2:45 p.m.
    Global behavior of a system modelling chemotaxis.
    Zhenbu Zhang*, Jackson State University
    (1011-35-17)
• Friday October 21, 2005, 2:45 p.m.-3:35 p.m.
  Special Session on Algebraic Geometry, I
  Room 204, Oldfather Hall
  Organizers:
  Brian Harbourne, University of Nebraska-Lincoln bharbour@math.unl.edu
  Bangere P. Purnaprajna, University of Kansas purna@math.ku.edu
  

  • 2:45 p.m.
    Toroidialization of morphisms of 3-folds.
    Steven D Cutkosky*, University of Missouri
    (1011-14-238)
  • 3:15 p.m.
    On the resolutions of edge ideals.
    Adam Van Tuyl*, Lakehead University
    Huy Tai Ha, Tulane University
    (1011-13-93)
• Friday October 21, 2005, 4:00 p.m.-4:50 p.m.
  Einstein Public Lecture in Mathematics ``In celebration of the 100th anniversary of Albert Einstein's annus mirabilis"
  The nature of space.
  Auditorium, Kimball Recital Hall
  Sir Michael Atiyah*, University of Edinburgh
  (1011-00-11)
• Friday October 21, 2005, 5:15 p.m.-6:45 p.m.
  Reception Hosted by the Department of Mathematics
  Lobby, Van Brunt Visitor Center

Saturday October 22, 2005

• Saturday October 22, 2005, 7:30 a.m.-4:00 p.m.
  Meeting Registration
  Room 13B, Avery Hall
• Saturday October 22, 2005, 7:30 a.m.-4:00 p.m.
  Exhibit and Book Sale
  Room 13B, Avery Hall
• Saturday October 22, 2005, 8:00 a.m.-11:30 a.m.
  Special Session on Combinatorial Matrix Theory, II
  Room 19, Avery Hall
  Organizers:
  Leslie Hogben, Iowa State University lhogben@iastate.edu
  Bryan L. Shader, University of Wyoming bshader@uwyo.edu
  

  • 8:00 a.m.
    The Minimal Rank Problem and Forbidden Subgraphs.
    Wayne Barrett*, Department of Mathematics, Brigham Young University
    Jason Grout, Brigham Young University
    Don March, University of Florida
    Hein van der Holst, Eindhoven University of Technology
    Raphael Loewy, Technion-Israel Institute of Technology
    (1011-15-202)
  • 8:30 a.m.
    The Minimal Rank Problem Over Finite Fields and Projective Geometries.
    Jason Grout*, Brigham Young University
    Wayne Barrett, Brigham Young University
    Don March, University of Florida
    (1011-15-203)
  • 9:00 a.m.
    Minimum Rank Problem and zero patterns.
    Francesco Barioli*, University of Tennessee Chattanooga
    (1011-15-296)
  • 9:30 a.m.
    The Minimum Positive Semi-definite Rank of a Graph.
    Sivaram K. Narayan*, Central Michigan University
    (1011-15-133)
  • 10:00 a.m.
    Minimum Rank and Maximum Eigenvalue Multiplicity of Symmetric Tree Sign Patterns.
    Luz M. DeAlba*, Drake University
    Timothy L. Hardy, Chadron State College
    Irvin R. Hentzel, Iowa State University
    Leslie Hogben, Iowa State University
    Amy Wagsness, Iowa State University
    (1011-15-117)
  • 10:30 a.m.
    Sign patterns that almost require a unique rank.
    Zhongshan Li*, Georgia State University
    Marina Arav, Georgia State University
    Yubin Gao, North University of China
    Frank Hall, Georgia State University
    Selcuk Koyuncu, Georgia State University
    (1011-15-175)
  • 11:00 a.m.
    On the Exponents of Oscillatory Matrices.
    Shaun M Fallat*, University of Regina
    (1011-15-103)
• Saturday October 22, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Nonlinear Analysis and Control of Partial Differential Equations, II
  Room 120, Burnett Hall
  Organizers:
  George Avalos, University of Nebraska-Lincoln gavalos@math.unl.edu
  Petronela Radu, University of Nebraska-Lincoln pradu@math.unl.edu
  Mohammad A. Rammaha, University of Nebraska-Lincoln rammaha@math.unl.edu
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  

  • 8:00 a.m.
    Derivation and Interpretation of Kinetic Boundary Conditions for the Heat and Wave Equations.
    Gisele Ruiz Goldstein*, University of Memphis
    (1011-35-371)
  • 8:30 a.m.
    On the almost periodic solutions to semilinear differential equations in Banach spaces.
    Lan Thanh Nguyen*, Western Kentucky University
    (1011-34-225)
  • 9:00 a.m.
    The asymptotic behavior of energy for wave equations with nonlinear dissipative terms in $R^n$.
    Grozdena Todorova, University of Tennessee - Knoxville
    Borislav Yordanov*, University of Tennessee - Knoxville
    (1011-35-115)
  • 9:30 a.m.
    Frequency-domain stability of well-posed systems.
    Yuri Latushkin*, University of Missouri-Columbia
    (1011-93-60)
  • 10:00 a.m.
    Instability for the Klein-Gordon-Zakharov system.
    Grozdena Todorova*, University of Tennessee
    (1011-35-365)
  • 10:30 a.m.
    On the Dirichlet problem for higher order elliptic operators in two dimensions.
    Irina Mitrea*, University of Virginia
    (1011-35-186)
  • 11:00 a.m.
    Modeling Hybrid Parameter Multiple Body Systems with Application to Biomechanics.
    Lawrence Schovanec*, Department of Matheamtics & Statistics, Texas Tech University
    Alan Barhorst, Department of Mechanical Engineering, Texas Tech University
    (1011-74-266)
• Saturday October 22, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Calculus of Variations, II
  Room 203, Burnett Hall
  Organizers:
  Mikil Foss, University of Nebraska-Lincoln mfoss@math.unl.edu
  Giovanni Leoni, Carnegie Mellon University giovanni@andrew.cmu.edu
  

  • 8:00 a.m.
    $A$-quasiconvexity.
    Pedro M Santos*, Instituto Superior Técnico
    (1011-49-270)
  • 8:30 a.m.
    On G-Compactness of Beltrami operators.
    Tadeusz Iwaniec*, Syracuse University
    (1011-35-348)
  • 9:00 a.m.
    Inversion of deformations.
    Jan Mal\'y*, Charles University, Prague, Czech Republic
    Stanislav Hencl, Charles University, Prague, Czech Republic
    Pekka Koskela, University of Jyv\"asky'\"a, Finland
    (1011-49-240)
  • 9:30 a.m.
    The Newton's problem of minimal resistence.
    Marino Belloni*, Dipartimento di Matematica, Universita' di Parma, Italy
    (1011-49-105)
  • 10:00 a.m.
    The Gauss Green theorem for a bounded vector field whose divergence is a measure.
    William P Ziemer*, Indiana Univesity (Bloomington)
    (1011-28-116)
  • 10:30 a.m.
    Implicit partial differential equations.
    P. Marcellini*, Università di Firenze
    (1011-49-379)
  • 11:00 a.m.
    Action Minimization and Sharp Interface Limits.
    Maria G. Reznikoff*, Princeton University
    (1011-49-38)
• Saturday October 22, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Universal Algebra and Order, II
  Room 108, Avery Hall
  Organizers:
  Jonathan D. Farley, Harvard University lattice@math.harvard.edu
  John William Snow, Sam Houston State University jsnow@shsu.edu
  Japheth L. M. Wood, Chatham College jwood@chatham.edu
  

  • 8:00 a.m.
    Greedy Algebras.
    Theodore A. Rice*, Iowa State University
    (1011-08-183)
  • 8:30 a.m.
    The poset structure of a sum of Priestley spaces.
    R. N. Ball*, University of Denver, Denver, Colorado
    A. Pultr, Charles University, Prague, Czech Republic
    J. Sichler, University of Manitoba, Winnepeg, Canada
    (1011-06-323)
  • 9:00 a.m.
    Approximate satisfaction of identities (continued).
    Walter Taylor*, University of Colorado, Boulder, Colorado, USA
    (1011-08-316)
  • 9:30 a.m.
    Lattices of Compatible Topologies for Topological Models.
    Matt Insall*, Department of Mathematics and Statistics, University of Missouri - Rolla
    (1011-06-66)
  • 10:00 a.m.
    Countable Almost Rigid Heyting Algebras.
    M. E. Adams*, State University of New York at New Paltz
    Ale\v{s} Pultr, Charles University
    (1011-06-35)
  • 10:30 a.m.
    Finite Mal'tsev Algebras.
    Keith Kearnes, Department of Mathematics, University of Colorado at Boulder
    Agnes Szendrei*, Department of Mathematics, University of Colorado at Boulder
    (1011-08-278)
  • 11:00 a.m.
    The existence of a near-unanimity term in a finite algebra is decidable.
    Mikl\'os Mar\'oti*, Bolyai Institute, University of Szeged, Hungary
    (1011-08-134)
• Saturday October 22, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Association Schemes and Related Topics, I
  Room 119, Avery Hall
  Organizers:
  Sung Yell Song, Iowa State university sysong@iastate.edu
  Paul M. Terwilliger, University of Wisconsin terwilli@math.wisc.edu
  

  • 8:00 a.m.
    Distance-regular graphs and the quantum affine algebra $U_q(\widehat{sl}_2)$.
    Paul M Terwilliger*, Department of Mathematics, University of Wisconsin
    (1011-05-140)
  • 8:30 a.m.
    The subconstituent algebra of a bipartite distance-regular graph; thin modules with endpoint two.
    Mark S MacLean*, Seattle University
    Paul M Terwilliger, University of Wisconsin
    (1011-05-138)
  • 9:00 a.m.
    On bipartite $Q$-polynomial distance-regular graphs.
    Stefko Miklavic*, Department of Mathematics and Computer Science, Faculty of Education, University of Primorska
    (1011-05-155)
  • 9:30 a.m.
    Pseudo Idempotents and Bipartite Q-Polynomial Distance-Regular Graphs.
    Michael S. Lang*, Bradley University
    (1011-05-368)
  • 10:00 a.m.
    Permutation representations, characters and set partitions.
    Jonathan D.H. Smith*, Department of Mathematics, Iowa State University
    (1011-05-172)
  • 10:30 a.m.
    Discussion
  • 11:00 a.m.
    Type-II Matrices.
    Ada Chan, York University
    Chris Godsil*, University of Waterloo
    (1011-05-248)
• Saturday October 22, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Dynamic Equations on Time Scales, II
  Room 110, Avery Hall
  Organizers:
  Lynn H. Erbe, University of Nebraska-Lincoln lerbe@math.unl.edu
  Allan C. Peterson, University of Nebraska-Lincoln apeterso@math.unl.edu
  

  • 8:00 a.m.
    Asymptotic Equivalence Of Dynamic Systems.
    Billur Kaymakcalan*, Georgia Southern University
    Agacik Zafer, Middle East Technical University
    (1011-34-301)
  • 8:30 a.m.
    Optimal interval lengths for nonlocal boundary value problems associated with third order Lipschitz equations.
    Stephen Clark*, University of Missouri-Rolla
    Johnny Henderson, Baylor University
    (1011-34-151)
  • 9:00 a.m.
    Impulsive Functional Dynamic Equations on Time Scales.
    Mouffak Benchohra, Universite de Sidi Bel Abbes
    Johnny Henderson*, Baylor University
    Sotiris K. Ntouyas, University of Ioannina
    Abdelghani Ouahab, Universite de Sidi Bel Abbes
    (1011-39-36)
  • 9:30 a.m.
    A Continue Discussion about Practical Higher Order Derivative Approximations on Time Scales.
    Qin Sheng*, Baylor University
    (1011-34-55)
  • 10:00 a.m.
    Positive Solutions for a Nonlinear Functional Dynamic Equation on a Time Scale.
    Eric R Kaufmann, University of Arkansas at Little Rock
    Youssef Naim Raffoul*, University of Dayton
    (1011-39-62)
  • 10:30 a.m.
    Absolute Stability of Nonlinear Discrete Systems.
    Rigoberto Medina*, Departamento de Ciencias Exactas, Universidad de Los Lagos. Osorno, Chile
    Michael Gil', Department of Mathematics, Ben Gurion University of the Negev, Israel
    (1011-39-57)
  • 11:00 a.m.
    Asymptotic Stability for Second Order Dynamic Equations on Time Scale.
    Gro Hovhannisyan*, Kent State University, Stark Campus
    (1011-34-13)
• Saturday October 22, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Mathematical Ecology, II
  Room 103, Burnett Hall
  Organizers:
  David Logan, University of Nebraska-Lincoln dlogan@math.unl.edu
  William Robert Wolesensky, College of St. Mary wwolesensky@CSM.edu
  

  • 8:00 a.m.
    Geometric Singular Perturbation Analysis of a Model for Infectious Diseases.
    Michael Y Li*, University of Alberta
    Weishi Liu, University of Kansas
    (1011-34-396)
  • 8:30 a.m.
    Marine Phage Ecology.
    Joseph M Mahaffy*, San Diego State University
    (1011-92-347)
  • 9:00 a.m.
    A Stoichiometric Discrete Predator-Prey Model: Chaos and Its Implications.
    Meng Fan, School of Mathematics and Statistics, Northeast Normal University
    Irakli Loladze, Department of Mathematics, University of Nebraska-Lincoln
    Yang Kuang*, Department of Mathematics and Statistics, Arizona State University
    James J Elser, School of Life Sciences, Arizona State University
    (1011-92-70)
  • 9:30 a.m.
    Population dynamics in systems with unidirectional flow.
    Roger M. Nisbet*, University of California, Santa Barbara.
    (1011-92-191)
  • 10:30 a.m.
    Modeling the energy-mortality tradeoffs of invertebrate decorating behavior.
    Sarah K Berke, Department of Biological Sciences, Univ. of S. Carolina
    Matthew Miller*, Department of Mathematics, Univ. of S. Carolina
    Sarah A Woodin, Department of Biological Sciences, Univ. of S. Carolina
    (1011-92-306)
  • 11:00 a.m.
    Plant competition for sunlight.
    Andrew L. Nevai*, The Ohio State University
    Richard R. Vance, University of California, Los Angeles
    (1011-92-385)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Representation Theory of Noetherian Rings, I
  Room 112, Avery Hall
  Organizers:
  Roger A. Wiegand, University of Nebraska-Lincoln rwiegand@math.unl.edu
  Sylvia Margaret Wiegand, University of Nebraska-Lincoln swiegand@math.unl.edu
  

  • 8:30 a.m.
    Direct-sum decompositions over one-dimensional reduced local rings.
    Alberto Facchini, Università di Padova
    Wolfgang Hassler, Karl-Franzens-Universität Graz
    Lee Klingler*, Florida Atlantic University
    Roger Wiegand, University of Nebraska, Lincoln
    (1011-13-163)
  • 9:00 a.m.
    Failure of Krull-Schmidt for Two-dimensional Local Domains.
    Nicholas R Baeth*, Central Missouri State University
    (1011-13-33)
  • 9:30 a.m.
    Decomposition of modules over one-dimensional Noetherian rings.
    Meral Arnavut*, SUNY Fredona, Department of Mathematical Sciences
    Melissa Luckas, University of Nebrska-Lincoln
    Sylvia Wiegand, University of Nebraska-Lincoln
    (1011-13-261)
  • 10:00 a.m.
    Indecomposable modules of large multiplicity over local rings.
    W. Hassler, Karl-Franzens-Universität Graz
    R. Karr*, Wilkes Honors College FAU
    L. Klingler, Florida Atlantic University
    R. Wiegand, University of Nebraska - Lincoln
    (1011-13-227)
  • 10:30 a.m.
    Decomposition of modules over one-dimensional Noetherian rings II.
    Meral Arnavut, SUNY Fredonia
    Melissa Luckas*, University of Nebraska Lincoln
    Sylvia Wiegand, University of Nebraska Lincoln
    (1011-13-308)
  • 11:00 a.m.
    Direct-sum cancellation for modules over real quadratic orders.
    Wolfgang Hassler*, University of Graz, Austria
    (1011-13-90)
• Saturday October 22, 2005, 8:30 a.m.-11:15 a.m.
  Special Session on Commutative Algebra, I
  Room 106, Avery Hall
  Organizers:
  Lars Winther Christensen, University of Nebraska-Lincoln winther@math.unl.edu
  Srikanth B. Iyengar, University of Nebraska-Lincoln iyengar@math.unl.edu
  Sean M. Sather-Wagstaff, California State University, Dominguez Hills swagstaff@math.unl.edu
  

  • 8:30 a.m.
    Tangent algebras.
    Aron Simis, Universidade Federal de Pernambuco
    Bernd Ulrich*, Purdue University
    Wolmer V. Vasconcelos, Rutgers University
    (1011-13-176)
  • 9:30 a.m.
    A Class of coherent regular rings.
    Christel - Rotthaus*, Michigan State University
    Liana M Sega, University of Missouri at Kansas City
    (1011-13-215)
  • 10:30 a.m.
    Questions on Noetherian rings of mixed characteristic.
    Paul C Roberts*, University of Utah
    (1011-13-228)
• Saturday October 22, 2005, 8:30 a.m.-10:55 a.m.
  Special Session on Mathematical Education of Teachers, III
  Room 119, Burnett Hall
  Organizers:
  W. James Lewis, University of Nebraska-Lincoln jlewis@math.unl.edu
  Cheryl Lynn Olsen, Shippensburg University of Pennsylvania clolse@ship.edu
  Ira J. Papick, University of Missouri-Columbia papicki@missouri.edu
  

  • 8:30 a.m.
    A Distance Education Course in Experimentation, Conjecture and Reasoning for Middle-School Teachers.
    Steven R Dunbar*, University of Nebraska-Lincoln
    Heidi Feller, University of Nebraska-Lincoln
    (1011-97-282)
  • 9:00 a.m.
    Preparation and Support of Mathematics Teachers: the role of an A\&S Math Department.
    Paul M Eakin*, University of Kentucky
    (1011-97-249)
  • 9:30 a.m.
    Calculus for middle school teachers.
    Dorina Mitrea*, University of Missouri
    (1011-97-226)
  • 10:00 a.m.
    Elementary and Middle School Teachers as Mathematicians: Training K-8 Mathematics Teacher Leaders.
    Kenneth I. Gross*, University of Vermont and Lesley University
    (1011-97-188)
  • 10:30 a.m.
    The Impact of KTEM on Preservice Elementary Teachers' Beliefs on Learning and Teaching Whole Number Operations.
    Hortensia Soto-Johnson*, University of Northern Colorado
    Michele Iiams, University of North Dakota
    Todd Oberg, Illinois College
    Barbara Boschmans, Plymouth State University
    April Hoffmeister, University of Memphis
    (1011-97-287)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on K-Theory and Algebraic Cycles, II
  Room 109, Avery Hall
  Organizers:
  Christian Haesemeyer, University of Illinois at Urbana-Champaign chh@math.uiuc.edu
  Gregory Grant Piepmeyer, University of Nebraska-Lincoln gpiepmey@math.unl.edu
  Mark Edward Walker, University of Nebraska-Lincoln mwalker@math.unl.edu
  

  • 8:30 a.m.
    Karoubi's Construction for Motivic Cohomology Operations.
    Zhaohu Nie*, Texas A&M University
    (1011-14-108)
  • 9:00 a.m.
    Mixed Tate Motives.
    Madhav V Nori*, The University of Chicago
    (1011-19-100)
  • 10:00 a.m.
    A Lefschetz (1,1)-theorem for proper seminormal complex varieties.
    Andreas Rosenschon*, University at Buffalo, SUNY
    (1011-14-317)
  • 10:30 a.m.
    Applications of homotopy theory to algebraic geometry.
    Marc Levine*, Northeastern University
    (1011-14-237)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Analysis of Partial Differential and Integral Equations, II
  Room 232, Burnett Hall
  Organizers:
  Congming Li, University of Colorado Congming.Li@colorado.edu
  

  • 8:30 a.m.
    Locating the peaks of least-energy solutions to a quasilinear elliptic Neumann problem.
    Yi Li, University of Iowa
    Chun-Shan Zhao*, University of Iowa
    (1011-35-387)
  • 9:00 a.m.
    The symmetry of the solutions to the intergral equations related with weighted Hardy-Littlewood-Sobolev inequality.
    Chao Jin*, Ph.D student, Dept. of Applied Math, University of Colorado at Boulder
    Congming Li, Professor, Dept. of Applie math, university of colorado at boulder
    (1011-45-233)
  • 9:30 a.m.
    The Asymptotics of Solutions to Some Integral Equations.
    Jisun Lim*, University of Colorado at Boulder
    Congming Li, University of Colorado at Boulder
    Chao Jin, University of Colorado at Boulder
    (1011-45-77)
  • 10:00 a.m.
    Global existence and a priori estimates of Gierer-Meinhardt system.
    Huiqiang Jiang*, School of Mathematics, University of Minnesota
    Wei-Ming Ni, School Of Mathematics, University of Minnesota
    (1011-35-86)
  • 10:30 a.m.
    Layer potentials on spaces with vanishing mean oscillations.
    Dorina Mitrea*, University of Missouri-Columbia
    (1011-35-34)
  • 11:00 a.m.
    Mathematical models for the propagation of electromagnetic waves in generally nonlinear magnetized and polarized media.
    Frank Jochmann*, TU-Berlin, Institut fur Mathematik
    (1011-35-50)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Undergraduate Research, II
  Room 115, Avery Hall
  Organizers:
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  Gordon S. Woodward, University of Nebraska-Lincoln gwoodwar@math.unl.edu
  

  • 8:30 a.m.
    Theorems on Non-negative Primitive Matrices.
    Derek Boeckner*, University of Nebraska-Lincoln
    (1011-15-359)
  • 9:00 a.m.
    Robustness and Transients Applied to Harvesting Peregrine Falcon Populations, Preliminary report.
    Alyson Deines*, Kansas State University
    Ellen Peterson*, Wittenberg University
    Richard Ryan*, University of Rhode Island
    (1011-92-298)
  • 9:30 a.m.
    Cheetah Conservation - A New Approach.
    Amy Keighley*, Rensselaer Polytechnic Institute
    Joan Lubben, University of Nebraska-Lincoln
    (1011-92-307)
  • 10:00 a.m.
    The Evolution of Cooperation in Finite, Growing Populations.
    Allison Bishop*, Princeton University
    (1011-91-328)
  • 10:30 a.m.
    The Henstock-Kurzweil Delta Integral on Unbounded Time Scales.
    Stephen Avsec*, Princeton University
    Brittany Bannish, Mt. Holyoke College
    Brian Johnson*, North Dakota State University
    Scott Meckler, SUNY at Geneseo
    (1011-39-304)
  • 11:00 a.m.
    Optimization algorithms in portfolio management with non-linear constraints.
    Bill Bade*, St. Mary's University of Minnesota
    (1011-90-325)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Algebraic Geometry, II
  Room 111, Avery Hall
  Organizers:
  Brian Harbourne, University of Nebraska-Lincoln bharbour@math.unl.edu
  Bangere P. Purnaprajna, University of Kansas purna@math.ku.edu
  

  • 8:30 a.m.
    Syzygies, multigraded regularity and toric varieties.
    Milena Hering*, University of Michigan
    Hal Schenck, Texas A&M University
    Greg Smith, Queens University, Ontario
    (1011-14-07)
  • 9:00 a.m.
    Birational Equivalence, Linear Systems, and Desingularization.
    Yasuyuki Kachi*, Department of Mathematics, University of Kansas
    (1011-14-42)
  • 9:30 a.m.
    The Geometry of the Weak Lefschetz Property.
    Juan C. Migliore*, University of Notre Dame
    (1011-14-112)
  • 10:00 a.m.
    The equations of curves on a quadric.
    Roberta Di Gennaro, Universita degli Studi di Napoli "Federico II"
    Uwe Nagel*, University of Kentucky
    (1011-14-279)
  • 10:30 a.m.
    On threefolds without nonconstant regular functions.
    Jing Zhang*, Department of Mathematics, University of Missouri, Columbia, MO 65211
    (1011-14-149)
  • 11:00 a.m.
    Stable bundles on Calabi-Yau manifolds and Donaldson-Thomas invariants.
    Zhenbo Qin*, University of Missouri at Columbia
    Wei-Ping Li, Hong Kong University of Science and Technology
    (1011-14-54)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Scattering and Spectral Problems in Geometry, II
  Room 205, Burnett Hall
  Organizers:
  Peter A. Perry, University of Kentucky perry@ms.uky.edu
  Alejandro Uribe, University of Michigan uribe@umich.edu
  

  • 8:30 a.m.
    Sharp upper bounds on the number of scattering poles.
    Plamen Stefanov*, Purdue University
    (1011-35-94)
  • 9:00 a.m.
    The resonance counting function for Schr\"odinger operators in odd dimensions.
    T. Christiansen*, University of Missouri
    P. D. Hislop, University of Kentucky
    (1011-35-67)
  • 9:30 a.m.
    Semiclassical Scattering Amplitude at a Maximum Point of the Potential.
    Ivana Alexandrova*, University of Toronto
    Jean-Francois Bony, Universite Bordeaux
    Thierry Ramond, Universite Paris-Sud
    (1011-35-194)
  • 10:00 a.m.
    Inverse spectral results on even dimensional tori.
    Carolyn S Gordon*, Dartmouth College
    Pierre Guerini, Institut f\"ur Mathematik, Universit\"at Z\"urich-Irchel\
    Thomas Kappeler, Institut f\"ur Mathematik, Universit\"at Z\"urich-Irchel\
    David L Webb, Dartmouth College
    (1011-58-367)
  • 10:30 a.m.
    Compactness of Isospectral Potentials.
    Harold G Donnelly*, Purdue University
    (1011-58-20)
  • 11:00 a.m.
    Maximal $L^{\infty}$-bounds for modes and quasimodes of the Laplacian.
    John A Toth*, McGill University
    (1011-35-101)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Recent Progress in Operator Algebras, II
  Room 118, Burnett Hall
  Organizers:
  Allan P. Donsig, University of Nebraska-Lincoln adonsig@math.unl.edu
  David R. Pitts, University of Nebraska-Lincoln dpitts@math.unl.edu
  

  • 8:30 a.m.
    Representations of Product Systems over Semigroups and Dilations of Commuting CP maps.
    Baruch Solel*, Technion, Israel Institute of Technology
    (1011-46-51)
  • 9:00 a.m.
    Non-outer conjugate actions on a free product factor.
    Maria Grazia Viola*, Department of Mathematics, Queen's University
    Kenneth Dykema, Department of Mathematics, Texas A&M University
    (1011-46-345)
  • 9:30 a.m.
    Paving Small Matrices.
    Gary Weiss, University of Cincinnati
    Vrej Zarikian*, United States Naval Academy
    (1011-47-271)
  • 10:00 a.m.
    $C^{*}$-Algebras associated with Mauldin-Williams Graphs.
    Marius V Ionescu*, Deparmtent of Mathematics, Dartmouth College
    (1011-47-113)
  • 10:30 a.m.
    Algebraic Solution of the Lifting Problem for Commuting Subnormals.
    Raul E Curto*, The University of Iowa
    (1011-47-99)
  • 11:00 a.m.
    Classifying the Stable Ideals of a Nest Algebra.
    John Lindsay Orr*, University of Nebraska - Lincoln
    (1011-47-250)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Geometric Methods in Group Theory and Semigroup Theory, II
  Room 107, Burnett Hall
  Organizers:
  Susan M. Hermiller, University of Nebraska-Lincoln smh@math.unl.edu
  John C. Meakin, University of Nebraska-Lincoln jmeakin@math.unl.edu
  Zoran Sunik, Texas A&M University sunik@math.tamu.edu
  

  • 8:30 a.m.
    Algebraic characterizations of one-way functions.
    Jean-Camille Birget*, Rutgers University, Camden Campus
    (1011-20-48)
  • 9:00 a.m.
    Reidemeister number as a quasi-isometry invariant for the solvable Baumslag-Solitar groups.
    Jennifer Taback*, Bowdoin College
    Peter Wong, Bates College
    (1011-20-45)
  • 9:30 a.m.
    Distortion of surface groups in free-by-cyclic groups.
    Noel Brady*, University of Oklahoma
    Josh Barnard, University of Oklahoma
    (1011-20-356)
  • 10:00 a.m.
    Curvature properties of limit groups.
    Emina Alibegovic*, University of Michigan
    (1011-20-326)
  • 10:30 a.m.
    Biautomaticity and CAT(0) piecewise Euclidean 2-complexes.
    Rena Hull*, UC Santa Barbara
    (1011-20-170)
  • 11:00 a.m.
    Groups acting on CAT(0) spaces of the form $X\times\mathbb R$.
    Kim Ruane*, Tufts University
    (1011-20-330)
• Saturday October 22, 2005, 8:30 a.m.-10:00 p.m.
  Special Session on Randomness in Computation, III
  Room 347, Avery Hall
  Organizers:
  John M. Hitchcock, University of Wyoming jhitchco@cs.uwyo.edu
  Aduri Pavan, Iowa State University pavan@cs.iastate.edu
  Vinodchandran Variyam, University of Nebraska-Lincoln vinod@cse.unl.edu
  

  • 8:30 a.m.
    Connections Between Kolmogorov and Computational Complexity.
    Lance Fortnow*, University of Chicago
    (1011-68-98)
  • 9:00 a.m.
    The list-decoding radius for Reed-Solomon codes.
    Eli Ben-Sasson, Toyota Technological Institute at Chicago
    Swastik Kopparty, MIT
    Jaikumar Radhakrishnan*, Toyota Technological Institute at Chicago and Tata Institute, Mumbai
    (1011-68-255)
  • 9:30 a.m.
    The Directed Planar Reachability Problem.
    Eric Allender, Rutgers University
    Samir Datta, Chennai Mathematical Institute
    Sambuddha Roy*, Rutgers University
    (1011-68-239)
  • 10:00 a.m.
    Break
  • 10:30 a.m.
    Discussion
  • 11:00 a.m.
    Hierarchies for Smoothed Probabilistic Classes.
    Rahul Santhanam*, Simon Fraser University
    (1011-68-388)
• Saturday October 22, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Graph Theory, II
  Room 102, Burnett Hall
  Organizers:
  Andrew J. Radcliffe, University of Nebraska-Lincoln jradclif@math.unl.edu
  Zsuzsanna Szaniszlo, Valparaiso University zsuzsanna.szaniszlo@valpo.edu
  Jonathan Cutler, University of Nebraska-Lincoln jcutler@math.unl.edu
  

  • 8:30 a.m.
    Discussion
  • 9:00 a.m.
    Highly connected multicoloured subgraphs of multicoloured graphs.
    Henry Liu, The University of Memphis
    Robert Morris*, The University of Memphis
    Noah Prince, The University of Memphis
    (1011-05-107)
  • 9:30 a.m.
    On list-coloring outerplanar graphs.
    M. O. Albertson, Smith College
    J. P. Hutchinson*, Macalester College
    R Ramamurthi, California State University San Marcos
    (1011-05-174)
  • 10:00 a.m.
    Improved bounds for the two person guessing secrets game.
    Boris Bukh, Princeton University
    Anant P Godbole*, East Tennessee State University
    Eden Hochbaum, Harvard University
    (1011-05-78)
  • 10:30 a.m.
    On a conjecture of Berge and Simonovits about hypergraph products.
    Dhruv Mubayi*, University of Illinois at Chicago
    Vojtech Rodl, Emory University
    (1011-05-158)
  • 11:00 a.m.
    Near-perfect pseudoharmonious matchings randomly labeled planar point sets.
    Jozsef Balogh*, The University of Illinois at Urbana-Champaign
    Boris Pittel, The Ohio State University
    Gelasio Salazar, University of San Luis, Mexico
    (1011-05-81)
• Saturday October 22, 2005, 9:00 a.m.-11:20 a.m.
  Special Session on Geometry of Differential Equations, II
  Room 204, Burnett Hall
  Organizers:
  Jeanne Nielsen Clelland, University of Colorado Jeanne.Clelland@Colorado.EDU
  Irina A. Kogan, North Carolina State University iakogan@ncsu.edu
  Zhijun Qiao, University of Texas-Pan American qiao@utpa.edu
  

  • 9:00 a.m.
    An Integrable Reduction in Coassociative Geometry.
    Daniel Fox*, University of California, Irvine
    (1011-53-220)
  • 9:30 a.m.
    Special Lagrangians in the Deformed and Resolved Conifolds.
    Marianty Ionel*, The University of Toledo
    (1011-53-224)
  • 10:00 a.m.
    Geodesics of Sub-Riemannian Engel Manifolds.
    Christopher G Moseley*, US Miltary Academy, West Point, NY
    (1011-53-187)
  • 10:30 a.m.
    Geometry of sub-Finsler Engel manifolds.
    Jeanne N. Clelland*, University of Colorado, Boulder
    Christopher G. Moseley, U.S. Military Academy
    George R. Wilkens, University of Hawaii
    (1011-53-218)
  • 11:00 a.m.
    An Inverse Problem from Sub-Riemannian Geometry.
    Thomas A. Ivey*, College of Charleston
    (1011-53-73)
• Saturday October 22, 2005, 9:00 a.m.-11:20 a.m.
  Special Session on Mathematical and Engineering Aspects of Coding Theory, II
  Room 121, Burnett Hall
  Organizers:
  Lance Perez, University of Nebraska-Lincoln lperez@unl.edu
  Judy Walker, University of Nebraska-Lincoln jwalker@math.unl.edu
  

  • 9:00 a.m.
    Nested Interpolation for Reduced Complexity Soft Decoding of Reed Solomon Codes.
    Ralf Koetter*, University of Illinois at Urbana Champaign
    (1011-94-382)
  • 9:30 a.m.
    Multivariate Interpolation Decoding of Reed-Solomon Codes And Decoding Beyond the Guruswami-Sudan Radius.
    Farzad Parvaresh*, University of California, San Diego
    Alexander Vardy, University of California, San Diego
    (1011-14-205)
  • 10:00 a.m.
    On linear programming bounds for codes.
    Alexander Barg*, University of Maryland
    (1011-94-212)
  • 10:30 a.m.
    An Explicit Construction of Universally Decodable Matrices.
    Pascal O Vontobel*, Department of Electrical and Computer Engineering, University of Wisconsin-Madison
    Ashwin Ganesan, Department of Electrical and Computer Engineering, University of Wisconsin-Madison
    (1011-94-135)
  • 11:00 a.m.
    Sequences in chemistry and physics.
    Jonathan I Hall*, Michigan State University
    (1011-94-303)
• Saturday October 22, 2005, 11:40 a.m.-12:30 p.m.
  Invited Address
  Billiards in polygons: Connections of geometry and complex analysis to dynamical systems.
  Room 115, Burnett Hall
  Howard A. Masur*, University of Illinois at Chicago
  (1011-37-06)
• Saturday October 22, 2005, 2:00 p.m.-2:50 p.m.
  Invited Address
  Some mathematical manifestations of the quantum-classical relationship.
  Room 115, Burnett Hall
  Alejandro Uribe*, University of MIchigan
  (1011-00-44)
• Saturday October 22, 2005, 3:00 p.m.-4:55 p.m.
  Special Session on Combinatorial Matrix Theory, III
  Room 19, Avery Hall
  Organizers:
  Leslie Hogben, Iowa State University lhogben@iastate.edu
  Bryan L. Shader, University of Wyoming bshader@uwyo.edu
  

  • 3:00 p.m.
    An Interlacing Result on Normalized Laplacians.
    Guantao Chen, Georgia State University
    George Davis, Georgia State University
    Frank Hall*, Georgia State University
    Zhongshan Li, Georgia State University
    Kinnari Patel, Emory University
    Michael Stewart, Georgia State University
    (1011-15-49)
  • 3:30 p.m.
    Some remarks on uni-spectral graphs.
    Wasin So*, San Jose State University
    (1011-15-19)
  • 4:00 p.m.
    Corona of two Graphs.
    Sasmita Barik, Indian Institute of Technology Guwahati
    Sukanta Pati, Indian Institute of Technology Guwahati
    Bhaba Kumar Sarma*, Indian Institute of Technology Guwahati
    (1011-05-52)
  • 4:30 p.m.
    Perfect matchings, eigenvalues and expansion.
    Sebastian M Cioab\u{a}*, Queen's University at Kingston
    (1011-05-156)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Geometry of Differential Equations, III
  Room 204, Burnett Hall
  Organizers:
  Jeanne Nielsen Clelland, University of Colorado Jeanne.Clelland@Colorado.EDU
  Irina A. Kogan, North Carolina State University iakogan@ncsu.edu
  Zhijun Qiao, University of Texas-Pan American qiao@utpa.edu
  

  • 3:00 p.m.
    Singular Normal Forms for Symplectic Monge-Ampere PDE in the Plane.
    Jeanne Clelland, University of Colorado at Boulder
    Marek Kossowski, University of South Carolina
    George R Wilkens*, University of Hawaii at Manoa
    (1011-58-295)
  • 3:30 p.m.
    Rigidity of submanifolds in homogeneous spaces.
    Sung Ho Wang*, Kias
    (1011-53-84)
  • 4:00 p.m.
    On B\"acklund Transformations Using Two Pseudo-Potentials.
    Hongyou Wu*, Northern Illinois University
    (1011-35-171)
  • 4:30 p.m.
    Hamiltonian Structures of Constrained Flows.
    Wen-Xiu Ma*, University of South Florida
    (1011-37-201)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Representation Theory of Noetherian Rings, II
  Room 112, Avery Hall
  Organizers:
  Roger A. Wiegand, University of Nebraska-Lincoln rwiegand@math.unl.edu
  Sylvia Margaret Wiegand, University of Nebraska-Lincoln swiegand@math.unl.edu
  

  • 3:00 p.m.
    Generalizations of Koszul algebras.
    Edward L Green*, Virginia Tech
    (1011-16-236)
  • 3:30 p.m.
    Approximately Simultaneously Diagonalizable Matrices.
    C I Vinsonhaler*, University of Connecticut
    (1011-16-206)
  • 4:00 p.m.
    Classifying finite dimensional representations with squarefree tops.
    Birge Huisgen-Zimmermann*, University of California at Santa Barbara
    (1011-16-216)
  • 4:30 p.m.
    Multi-isomorphism for quotient divisible groups; connections with representations of rings.
    Bill Wickless*, University of Connecticut
    (1011-20-53)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Nonlinear Analysis and Control of Partial Differential Equations, III
  Room 120, Burnett Hall
  Organizers:
  George Avalos, University of Nebraska-Lincoln gavalos@math.unl.edu
  Petronela Radu, University of Nebraska-Lincoln pradu@math.unl.edu
  Mohammad A. Rammaha, University of Nebraska-Lincoln rammaha@math.unl.edu
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  

  • 3:00 p.m.
    Linear and Nonlinear Controllability of Viscoelastic Shear Flows.
    Michael Renardy*, Virginia Tech
    (1011-76-58)
  • 3:30 p.m.
    A Posteriori Error Analysis For Mathematical Idealizations And Numerical Approximations.
    Weimin Han*, Department of Mathematics, University of Iowa
    (1011-65-119)
  • 4:00 p.m.
    Models for Material Damage.
    Meir Shillor*, Oakland University
    (1011-74-197)
  • 4:30 p.m.
    Semigroup theory for Yeow`s equations of free liquid films.
    Thomas Hagen*, The University of Memphis
    (1011-35-61)
• Saturday October 22, 2005, 3:00 p.m.-4:45 p.m.
  Special Session on Commutative Algebra, II
  Room 106, Avery Hall
  Organizers:
  Lars Winther Christensen, University of Nebraska-Lincoln winther@math.unl.edu
  Srikanth B. Iyengar, University of Nebraska-Lincoln iyengar@math.unl.edu
  Sean M. Sather-Wagstaff, California State University, Dominguez Hills swagstaff@math.unl.edu
  

  • 3:00 p.m.
    Encoding injective resolutions.
    Ezra Miller*, University of Minnesota, Twin Cities
    (1011-13-281)
  • 4:00 p.m.
    Duality and stability.
    Alex Martsinkovsky*, Northeastern University
    Idun Reiten, NTNU (Trondheim)
    (1011-16-209)
• Saturday October 22, 2005, 3:00 p.m.-4:55 p.m.
  Special Session on Mathematical Education of Teachers, III
  Room 119, Burnett Hall
  Organizers:
  W. James Lewis, University of Nebraska-Lincoln jlewis@math.unl.edu
  Cheryl Lynn Olsen, Shippensburg University of Pennsylvania clolse@ship.edu
  Ira J. Papick, University of Missouri-Columbia papicki@missouri.edu
  

  • 3:00 p.m.
    A Course in Number Theory and Cryptology for Middle Level Teachers.
    Kristin Pfabe*, Department of Mathematics, Nebraska Wesleyan University, Lincoln NE
    Michelle Reeb Homp, Center for Science, Mathematics and Computer Education, University of Nebraska - Lincoln
    (1011-97-334)
  • 3:30 p.m.
    Geometry for Middle School Mathematics Teachers.
    John K. Beem*, University of Missouri-Columbia
    (1011-97-199)
  • 4:00 p.m.
    In Polya's words: "The student shall have a reasonable share of the work".
    Kristin L. Umland*, University of New Mexico
    (1011-97-294)
  • 4:30 p.m.
    The Mathematical Education of Teachers: The Small College Plan.
    Robert E Glasgow*, Southwest Baptist University
    (1011-97-342)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on K-Theory and Algebraic Cycles, III
  Room 109, Avery Hall
  Organizers:
  Christian Haesemeyer, University of Illinois at Urbana-Champaign chh@math.uiuc.edu
  Gregory Grant Piepmeyer, University of Nebraska-Lincoln gpiepmey@math.unl.edu
  Mark Edward Walker, University of Nebraska-Lincoln mwalker@math.unl.edu
  

  • 3:00 p.m.
    Triangular Witt groups of punctured vector bundles.
    Seva Joukhovitski*, University of California, Los Angeles
    (1011-19-181)
  • 3:30 p.m.
    A Bivariant Theory for Quasi-Projective Schemes.
    Mona Mocanasu*, Northwestern University
    (1011-19-211)
  • 4:00 p.m.
    Non-abelian localization in equivariant $K$-theory.
    Dan Edidin*, University of Missouri
    (1011-19-180)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Calculus of Variations, III
  Room 203, Burnett Hall
  Organizers:
  Mikil Foss, University of Nebraska-Lincoln mfoss@math.unl.edu
  Giovanni Leoni, Carnegie Mellon University giovanni@andrew.cmu.edu
  

  • 3:00 p.m.
    Rate-Independent Evolution Problems in Elasto-Plasticity: a Variational Approach.
    Gianni Dal Maso*, SISSA
    (1011-49-297)
  • 3:30 p.m.
    A variational approach to quasi-static evolution for a class of dissipative materials.
    Gilles A. Francfort*, L.P.M.T.M., Université Paris-Nord
    (1011-74-111)
  • 4:00 p.m.
    Quasistatic evolution of steps along a phase boundary.
    Anna Vainchtein*, Department of Mathematics, University of Pittsburgh
    (1011-49-234)
  • 4:30 p.m.
    Asymptotic stability of solitary waves in models of water wave dynamics.
    Robert L Pego*, Carnegie Mellon University
    (1011-35-339)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Analysis of Partial Differential and Integral Equations, III
  Room 232, Burnett Hall
  Organizers:
  Congming Li, University of Colorado Congming.Li@colorado.edu
  

  • 3:00 p.m.
    Topologically driven local minimizers of the Oseen-Frank energy.
    Peter J Sternberg*, Department of Mathematics, Indiana University
    Jacob Rubinstein, Department of Mathematics, Indiana University
    Yun-hui Kim, Department of Mathematics, Indiana University
    (1011-49-95)
  • 3:30 p.m.
    Nonlinear Instability for the Navier-Stokes Equations.
    Susan Friedlander*, University of Illinois-Chicago
    (1011-76-75)
  • 4:00 p.m.
    Free Boundary Euler Equations with Surface Tension.
    Daniel Coutand, UC Davis
    Steve Shkoller*, Dept. of Math, University of California at Davis
    (1011-35-373)
  • 4:30 p.m.
    Some special boundary value problems for complex Monge-Amp\`ere equations.
    Bo Guan*, Ohio State University
    (1011-35-290)
• Saturday October 22, 2005, 3:00 p.m.-5:00 p.m.
  Special Session on Undergraduate Research, III
  Room 115, Avery Hall
  Organizers:
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  Gordon S. Woodward, University of Nebraska-Lincoln gwoodwar@math.unl.edu
  

  • 3:00 p.m.
    The Root Squeezing Theorem.
    Justin From*, Central College
    Samuel Kolins, Bowdoin College
    (1011-26-361)
  • 3:30 p.m.
    Rearranging Almost Convergent Sequences.
    Christopher Bay*, SUNY at Stony Brook
    (1011-40-327)
  • 4:00 p.m.
    Discussion: Going to Graduate School?
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Algebraic Geometry, III
  Room 111, Avery Hall
  Organizers:
  Brian Harbourne, University of Nebraska-Lincoln bharbour@math.unl.edu
  Bangere P. Purnaprajna, University of Kansas purna@math.ku.edu
  

  • 3:00 p.m.
    Construction of rational surfaces in projective fourspace.
    Hirotachi Abo*, Department of Mathematics, Colorado State University
    (1011-14-204)
  • 3:30 p.m.
    Projective varieties with nef anti-canonical divisors.
    Qi Zhang*, Department of Mathematics, University of Missouri-Columbia
    (1011-14-136)
  • 4:00 p.m.
    Eigenschemes.
    Donu Arapura, Purdue University
    Chris Peterson*, Colorado State University
    (1011-14-286)
  • 4:30 p.m.
    On $2$-plane arrangements associated to the Petersen Graph.
    Holger P. Kley*, Colorado State University
    Hirotachi Abo, Colorado State University
    Chris Peterson, Colorado State University
    (1011-14-336)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Universal Algebra and Order, III
  Room 108, Avery Hall
  Organizers:
  Jonathan D. Farley, Harvard University lattice@math.harvard.edu
  John William Snow, Sam Houston State University jsnow@shsu.edu
  Japheth L. M. Wood, Chatham College jwood@chatham.edu
  

  • 3:00 p.m.
    Numerical invariants for varieties of algebras.
    Joel Berman*, University of Illinois at Chicago
    (1011-06-102)
  • 3:30 p.m.
    Morphisms on Coalgebras.
    Key One Chung*, Iowa State University, Department of Mathematics
    (1011-06-129)
  • 4:00 p.m.
    Structural Completeness in Algebras of Logic.
    Jeffrey S. Olson*, University of Illinois at Chicago
    (1011-06-22)
  • 4:30 p.m.
    The equational complexity of Vi{\v s}in's algebra.
    George F. McNulty*, University of South Carolina
    Zoltan Szekely, Gallaudet University
    Ross Willard, University of Waterloo
    (1011-08-260)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Scattering and Spectral Problems in Geometry, III
  Room 205, Burnett Hall
  Organizers:
  Peter A. Perry, University of Kentucky perry@ms.uky.edu
  Alejandro Uribe, University of Michigan uribe@umich.edu
  

  • 3:00 p.m.
    The wave invariants on two-step nilmanifolds.
    Ruth Gornet*, University of Texas at Arlington
    (1011-53-148)
  • 3:30 p.m.
    The Singularities of the Wave Trace of the Basic Laplacian on a Riemannian Foliation.
    M. R. Sandoval*, Trinity College, Hartford, Connecticut
    (1011-58-143)
  • 4:00 p.m.
    Why should we care about projectively flat connections?
    William D Kirwin*, University of Notre Dame
    (1011-51-165)
  • 4:30 p.m.
    Spectral Theory of Pattern-Avoiding Permutations.
    Richard Ehrenborg, University of Kentucky
    Sergey Kitaev, Reykjavik University
    Peter A Perry*, University of Kentucky
    (1011-05-252)
• Saturday October 22, 2005, 3:00 p.m.-6:30 p.m.
  Special Session on Association Schemes and Related Topics, B
  Room 119, Avery Hall
  Organizers:
  Sung Yell Song, Iowa State university sysong@iastate.edu
  Paul M. Terwilliger, University of Wisconsin terwilli@math.wisc.edu
  

  • 3:00 p.m.
    On Association Schemes of Odd Order.
    Paul-Hermann Zieschang*, University of Texas at Brownsville
    (1011-05-389)
  • 3:30 p.m.
    Characterization of some strongly regular graphs on 64 vertices.
    Joohyung Kim*, Dept. of math. at Iowa State University
    Sung Y. Song, Dept. of Math. at Iowa State University
    (1011-05-200)
  • 4:00 p.m.
    Coherent configuration of type $AK(2)$ on 16 points and its mergings.
    Mikhail H. Klin*, Department of Mathematics, Ben-Gurion University of the Negev
    Mikhail Muzychuk, Netanya Academic College
    Sven Reichard, Greifswald, Germany
    (1011-05-222)
  • 4:30 p.m.
    Association Schemes on 28 Points as Mergings of a Half-Homogeneous Coherent Configuration.
    M Klin, Ben-Gurion University of the Negev
    M Muzychuk, Netanya Academic College
    C Pech, Technische Universitaet Dresden
    A Woldar*, Villanova University
    P-H Zieschang, University of Texas at Brownsville
    (1011-05-150)
  • 6:10 p.m.
    Terwilliger algebras of certain wreath product schemes.
    Sung Y. Song*, Iowa State University
    (1011-05-245)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Recent Progress in Operator Algebras, III
  Room 118, Burnett Hall
  Organizers:
  Allan P. Donsig, University of Nebraska-Lincoln adonsig@math.unl.edu
  David R. Pitts, University of Nebraska-Lincoln dpitts@math.unl.edu
  

  • 3:00 p.m.
    1-Hyperreflexivity and Complete Hyperreflexivity.
    Kenneth R. Davidson*, Pure Math. Dept., University of Waterloo
    Rupert H. Levene, Pure Math. Dept., University of Waterloo
    (1011-47-88)
  • 3:30 p.m.
    C*-algebras associated with interval maps.
    Valentin Deaconu*, University of Nevada, Reno
    Fred Shultz, Wellesley College
    (1011-46-251)
  • 4:00 p.m.
    Shift operator with two equal weights.
    Yiu Tung Poon*, Iowa State University
    Jasang Yoon, Iowa State University
    (1011-47-110)
  • 4:30 p.m.
    The Well-Posed Matrix Completion Problem.
    David R. Larson*, Texas A&M University
    (1011-47-79)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Mathematical and Engineering Aspects of Coding Theory, III
  Room 121, Burnett Hall
  Organizers:
  Lance Perez, University of Nebraska-Lincoln lperez@unl.edu
  Judy Walker, University of Nebraska-Lincoln jwalker@math.unl.edu
  

  • 3:00 p.m.
    Discussion
  • 3:30 p.m.
    Graph-Theoretic Constructions of LDPC Codes.
    Matt Koetz*, Nazareth College
    (1011-94-288)
  • 4:00 p.m.
    Minimal Pseudo-codewords of Codes from Finite Geometries.
    Roxana Smarandache*, Mathematics, Univ of Notre Dame/San Diego State University
    Pascal O. Vontobel, Dept. of ECE, University of Wisconsin-Madison
    (1011-94-76)
  • 4:30 p.m.
    Pseudo-codewords of LDPC codes.
    Ralf Koetter, University of Illinois,Urbana, IL, 61801
    Wen-Ching Winnie Li*, Pennsylvania State University, University Park, PA 16802
    Pascal O. Vontobel, University of Wisconsin, Madison, WI 53706
    Judy L. Walker, University of Nebraska, Lincoln, NE 68588-0130
    (1011-05-235)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Dynamic Equations on Time Scales, III
  Room 110, Avery Hall
  Organizers:
  Lynn H. Erbe, University of Nebraska-Lincoln lerbe@math.unl.edu
  Allan C. Peterson, University of Nebraska-Lincoln apeterso@math.unl.edu
  

  • 3:00 p.m.
    Generalized Convolution and Transforms.
    John M Davis*, Baylor University
    (1011-39-366)
  • 3:30 p.m.
    Functional Calculus for Discrete Time Scales II.
    Billy Jackson*, Baylor University
    John Davis, Baylor University
    (1011-39-146)
  • 4:00 p.m.
    An Extension of the Fixed Point Theorem of Cone Expansion and Compression of Functional Type.
    Richard I Avery*, Dakota State University
    (1011-34-132)
  • 4:30 p.m.
    An Existence Result for a Multi-Point Boundary Value Problem on a Time Scale.
    Bonita A. Lawrence*, Marshall University
    Basant Karna, Marshall University
    (1011-34-377)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Geometric Methods in Group Theory and Semigroup Theory, III
  Room 107, Burnett Hall
  Organizers:
  Susan M. Hermiller, University of Nebraska-Lincoln smh@math.unl.edu
  John C. Meakin, University of Nebraska-Lincoln jmeakin@math.unl.edu
  Zoran Sunik, Texas A&M University sunik@math.tamu.edu
  

  • 3:00 p.m.
    Asymptotic density in free groups and $\mathbb Z^k$, Visible Points and Test Elements.
    Ilya Kapovich*, University of Illinois at Urbana-Champaign
    Igor Rivin, Temple University
    Paul E Schupp, University of Illinois at Urbana-Champaign
    Vladimir Shpilrain, City College of the City University of New York
    (1011-20-82)
  • 3:30 p.m.
    Detecting the growth of free-group automorphisms via their action on homology.
    Adam Piggott*, Tufts University
    (1011-20-74)
  • 4:00 p.m.
    Examples of retracts in a free group that are not the fixed subgroup of any group of automorphisms.
    Laura I Ciobanu*, University of Auckland, New Zealand
    Warren Dicks, Universitat Autonoma de Barcelona
    (1011-20-122)
  • 4:30 p.m.
    Solving one variable equations in free groups.
    Robert Gilman*, Stevens Institute of technology
    (1011-20-153)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Graph Theory, III
  Room 102, Burnett Hall
  Organizers:
  Andrew J. Radcliffe, University of Nebraska-Lincoln jradclif@math.unl.edu
  Zsuzsanna Szaniszlo, Valparaiso University zsuzsanna.szaniszlo@valpo.edu
  Jonathan Cutler, University of Nebraska-Lincoln jcutler@math.unl.edu
  

  • 3:00 p.m.
    Odd crossing number is not crossing number.
    Michael J. Pelsmajer*, Illinois Insitute of Technology, Department of Applied Mathematics
    (1011-05-333)
  • 3:30 p.m.
    Random Geometric Graphs.
    P. Balister, University of Memphis
    B. Bollobas, University of Memphis
    A. Sarkar*, University of Memphis
    M. Walters, University of Cambridge
    (1011-05-182)
  • 4:00 p.m.
    On graphs with few nonisomorphic induced subgraphs.
    Maria Axenovich*, Department of Mathematics, Iowa State University
    Jozsef Balogh, Department of Mathematics, University of Illinois at Urbana-Champaign
    (1011-05-195)
  • 4:30 p.m.
    Signed Graph Factors and Degree Sequences.
    Heather Jordon*, Illinois State University
    Dean Hoffman, Auburn University
    (1011-05-243)
• Saturday October 22, 2005, 3:00 p.m.-4:50 p.m.
  Special Session on Mathematical Ecology, III
  Room 103, Burnett Hall
  Organizers:
  David Logan, University of Nebraska-Lincoln dlogan@math.unl.edu
  William Robert Wolesensky, College of St. Mary wwolesensky@CSM.edu
  

  • 3:00 p.m.
    Integrodifference Equations, Invasions, and Branching Random Walks.
    Mark Kot*, University of Washington, Seattle, WA
    (1011-92-164)
  • 4:00 p.m.
    Group Formation in Self-Organizing Collectives of Individuals.
    R. A. Eftimie*, University of Alberta
    M. A. Lewis, University of Alberta
    G. deVries, University of Alberta
    F. Lutscher, University of Ottawa
    (1011-92-104)
  • 4:30 p.m.
    Invasion and persistence in heterogeneous stream flow environments.
    Frithjof Lutscher*, University of Ottawa
    Mark A. Lewis, University of Alberta
    (1011-35-131)
• Saturday October 22, 2005, 3:00 p.m.-4:10 p.m.
  Session for Contributed Papers
  Room 124, Burnett Hall
  

  • 3:00 p.m.
    The defect in Jensen's Inequality.
    A. M. Fink*, Prof. Em. Iowa State University
    (1011-26-09)
  • 3:15 p.m.
    Numerical Approximation for Nonnegative $l_p$ -Data Fitting.
    Saïd Bahi*, Southern Utah University
    (1011-90-12)
  • 3:30 p.m.
    Different Matrices with the Same Eigenvalues.
    Donald Beken, University of North Carolina at Pembroke
    Ralph DeMarr*, University of New Mexico
    (1011-15-37)
  • 3:45 p.m.
    Ultra Hopfian Groups.
    Violeta Vasilevska*, The University of South Dakota, Vermillion
    (1011-57-152)
  • 4:00 p.m.
    Advanced numerical-analytical methods for path integral calculation and its application to some famous problems of 3-D turbulence theory.New scenario for transition to slow turbulence.
    Jaykov JSF Foukzon*, Prof. Israel Institute of Tech.
    (1011-76-05)
• Saturday October 22, 2005, 5:10 p.m.-6:00 p.m.
  Invited Address
  Ear Modeling, Auditory Transforms and Applications.
  Room 115, Burnett Hall
  Jack Xin*, University of California at Irvine
  (1011-35-395)

Sunday October 23, 2005

• Sunday October 23, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Calculus of Variations, IV
  Room 203, Burnett Hall
  Organizers:
  Mikil Foss, University of Nebraska-Lincoln mfoss@math.unl.edu
  Giovanni Leoni, Carnegie Mellon University giovanni@andrew.cmu.edu
  

  • 8:00 a.m.
    Global Lipschitz regularity of minimizers for asymptotically convex integrals.
    Mikil Foss*, University of Nebraska-Lincoln
    (1011-49-320)
  • 8:30 a.m.
    Variational multiscale problems and applications to thin films.
    Margarida N Ba\'ia*, Instituto Superior T\'ecnico
    (1011-49-273)
  • 9:00 a.m.
    A model for the epitaxial growth of an elastic thin film on a lattice-mismatched substrate.
    Irene Fonseca, Carnegie Mellon University
    Nicola Fusco, University of Naples
    Giovanni Leoni, Carnegie Mellon University
    Massimiliano Morini*, International School for Advanced Studies of Trieste
    (1011-49-232)
  • 9:30 a.m.
    Periodic phase separation: the periodic Cahn-Hilliard and isoperimetric problems.
    Peter J Sternberg*, Department of Mathematics, Indiana University
    Rustum Choksi, Department of Mathematics, Simon Fraser University
    (1011-49-97)
  • 10:00 a.m.
    Vortices in 2D Bose-Einstein condensates.
    Radu Ignat, Laboratoire J.L. Lions, University Paris 6
    Vincent Millot*, Carnegie Mellon University
    (1011-35-167)
  • 10:30 a.m.
    Lagrangian cartesian currrents and weak continuity of the determinant of the Hessian.
    Robert L Jerrard*, University of Toronto
    (1011-58-258)
  • 11:00 a.m.
    A two-dimensional compressible membrane theory as a Gamma-limit of three-dimensional incompressible elasticity.
    Georg K Dolzmann*, Mathematics Department, University of Maryland, College Park, MD 20742
    (1011-49-322)
• Sunday October 23, 2005, 8:00 a.m.-9:50 a.m.
  Special Session on Universal Algebra and Order, IV
  Room 108, Avery Hall
  Organizers:
  Jonathan D. Farley, Harvard University lattice@math.harvard.edu
  John William Snow, Sam Houston State University jsnow@shsu.edu
  Japheth L. M. Wood, Chatham College jwood@chatham.edu
  

  • 8:00 a.m.
    Almost Distributive Sublattices and Congruence Heredity.
    John W Snow*, Sam Houston State University
    (1011-06-32)
  • 8:30 a.m.
    When voter preferences are partially ordered.
    Michael Ackerman, Bellarmine University
    Sul-Young Choi, LeMoyne College
    Peter Coughlin, University of Maryland
    Eric Gottlieb, Rhodes College
    Japheth Wood*, Chatham College
    (1011-06-263)
  • 9:00 a.m.
    Tensor Products of Semilattices, Semimodularity and Supersolvability (A Problem of E. T. Schmidt from 1974 and Some Conjectures of Quackenbush from 1985).
    Jonathan David Farley*, Center for International Security, Stanford University
    (1011-06-299)
  • 9:30 a.m.
    Nondualizability of finite algebras with a semilattice operation.
    David M. Clark, SUNY at New Paltz
    Brian A. Davey, La Trobe University
    Jane G. Pitkethly, La Trobe University
    Ross Willard*, University of Waterloo
    (1011-06-394)
• Sunday October 23, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Association Schemes and Related Topics, III
  Room 119, Avery Hall
  Organizers:
  Sung Yell Song, Iowa State university sysong@iastate.edu
  Paul M. Terwilliger, University of Wisconsin terwilli@math.wisc.edu
  

  • 8:00 a.m.
    On Euclidean designs.
    Etsuko Bannai*, Faculty of Mathematics, Graduate school, Kyushu University
    (1011-05-118)
  • 8:30 a.m.
    Gelfand-Tzetlin bases and association schemes.
    Kenneth W Johnson*, Penn Sate University, Abington College
    (1011-05-256)
  • 9:00 a.m.
    Homogeneous P-polynomial Integral Table Algebras.
    Harvey I. Blau, Northern Illinois University
    Robert J. Hein*, Northern Illinois University
    (1011-13-145)
  • 9:30 a.m.
    Polygonal Designs: Existence and Construction.
    Gargi Bhattacharyya*, Dept. of math. at Iowa State University
    John Hegeman, Stanford University
    Jeff Langford, Drake University
    Joohyung Kim, Iowa State University
    Sung Y. Song, Iowa State University
    (1011-05-314)
  • 10:00 a.m.
    A new method of finding fusion schemes.
    Jianmin Ma*, Oxford College of Emory University
    (1011-05-208)
  • 10:30 a.m.
    Duality of Bose-Mesner algebras.
    Brian W Curtin*, University of South Florida
    (1011-05-141)
  • 11:00 a.m.
    Some remarks on imprimitive cometric (Q-polynomial) association schemes.
    William J. Martin*, Department of Mathematical Sciences, WPI
    Jason S. Williford, Department of Mathematical Sciences, WPI
    (1011-05-376)
• Sunday October 23, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Dynamic Equations on Time Scales, IV
  Room 110, Avery Hall
  Organizers:
  Lynn H. Erbe, University of Nebraska-Lincoln lerbe@math.unl.edu
  Allan C. Peterson, University of Nebraska-Lincoln apeterso@math.unl.edu
  

  • 8:00 a.m.
    Delay Dynamic Equations with Stability.
    Robert J. Krueger*, Concordia University, St. Paul
    Douglas R. Anderson, Concordia College
    Allan C. Peterson, University of Nebraska-Lincoln
    (1011-39-96)
  • 8:30 a.m.
    Linear Fractional Difference Equations.
    Paul W Eloe*, University of Dayton
    Ferhan Atici, Western Kentucky University
    (1011-39-29)
  • 9:00 a.m.
    Oscillation and nonoscillation of forced second order dynamic equations.
    Martin Bohner*, University of Missouri-Rolla
    Christopher C Tisdell, University of New South Wales
    (1011-39-264)
  • 9:30 a.m.
    On Regularly and Strongly Decaying Solutions of Quasilinear Dynamic Equations.
    Elvan Akin-Bohner*, University of Missouri-Rolla
    (1011-34-354)
  • 10:00 a.m.
    Oscillation for odd-order neutral $\Delta$-differential delay equations on a time scale.
    Ronald M Mathsen*, North Dakota State University
    (1011-34-14)
  • 10:30 a.m.
    Detection of the connecting orbits using the boundary map in Conley index theory.
    Catalin Georgescu*, Department of Mathematical Sciences, The University of South Dakota
    (1011-37-21)
  • 11:00 a.m.
    Periodicity and Stability in Neutral Nonlinear Dynamic Equations with Functional Delay on a Time Scale.
    Eric R Kaufmann*, University of Arkansas at Little Rock
    Youssef N Raffoul, University of Dayton
    (1011-34-157)
• Sunday October 23, 2005, 8:00 a.m.-11:20 a.m.
  Special Session on Mathematical Ecology, IV
  Room 103, Burnett Hall
  Organizers:
  David Logan, University of Nebraska-Lincoln dlogan@math.unl.edu
  William Robert Wolesensky, College of St. Mary wwolesensky@CSM.edu
  

  • 8:00 a.m.
    Map reduction for bifurcations en a route to bursting activity in neuron models.
    Andrey Shilnikov*, Department of Mathematics & Statistics, GSU
    Paul Channel, Department of Mathematics & Statistics, GSU
    Genndady Cymbalyuk, Dept Physics and Astronomy, GSU
    (1011-37-217)
  • 8:30 a.m.
    Front Solutions to Spatially Discrete Nerve Axon Models.
    Christopher Erhart Elmer*, New Jersey Institute of Technology
    (1011-39-231)
  • 9:00 a.m.
    The evolution of dispersal in patchy environments.
    Steve Kirkland, University of Regina
    Chi-Kwong Li, The College of William and Mary
    Sebastian Schreiber*, The College of William and Mary
    (1011-92-321)
  • 10:00 a.m.
    Asymptotic Analysis of the Spruce Budworm Model.
    Glenn Ledder*, Department of Mathematics, University of Nebraska-Lincoln
    (1011-92-319)
  • 10:30 a.m.
    Bistable Waves in Discrete Media.
    Erik S Van Vleck*, Department of Mathematics/University of Kansas
    (1011-35-390)
  • 11:00 a.m.
    Poisson-Nernst-Planck systems for narrow tubular-like membrane channels.
    Weishi Liu*, University of Kansas
    Bixiang Wang, New Mexico Institute of Mining and Technology
    (1011-37-393)
• Sunday October 23, 2005, 8:30 a.m.-11:30 a.m.
  Special Session on Combinatorial Matrix Theory, IV
  Room 19, Avery Hall
  Organizers:
  Leslie Hogben, Iowa State University lhogben@iastate.edu
  Bryan L. Shader, University of Wyoming bshader@uwyo.edu
  

  • 8:30 a.m.
    Matrix Completion Problems.
    Leslie Hogben*, Iowa State University
    (1011-15-47)
  • 9:00 a.m.
    Some results on the matrix completion problem for various classes of $P_{0,1}$-matrices.
    Amy Wangsness*, Fitchburg State College
    (1011-15-161)
  • 9:30 a.m.
    The Totally Nonnegative Completion Problem.
    Brenda K. Kroschel*, Univ. of St. Thomas
    Charles R. Johnson, College of William and Mary
    Emily B. Dryden, McGill University
    (1011-15-262)
  • 10:00 a.m.
    Some recent matrix results in mathematical biology.
    Chi-Kwong Li*, College of William and Mary
    (1011-15-43)
  • 10:30 a.m.
    Linear maps transforming the higher numerical ranges.
    Chi Kwong Li, College of William and Mary
    Yiu Tung Poon*, Iowa State University
    Nung Sing Sze, The University of Hong Kong
    (1011-15-189)
  • 11:00 a.m.
    Some Results on Structured M-matrices.
    J. Ding*, Department of Mathematics, The University of Southern Mississippi
    Wallace C. Pye, Department of Mathematics, The University of Southern Mississippi
    (1011-15-30)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Nonlinear Analysis and Control of Partial Differential Equations, IV
  Room 120, Burnett Hall
  Organizers:
  George Avalos, University of Nebraska-Lincoln gavalos@math.unl.edu
  Petronela Radu, University of Nebraska-Lincoln pradu@math.unl.edu
  Mohammad A. Rammaha, University of Nebraska-Lincoln rammaha@math.unl.edu
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  

  • 8:30 a.m.
    Elliptic sine-Gordon equation.
    Zhonghai Ding*, University of Nevada Las Vegas
    (1011-35-64)
  • 9:00 a.m.
    Stochastic Equations with a Fractional Brownian Motion.
    Tyrone E. Duncan*, University of Kansas
    (1011-60-166)
  • 9:30 a.m.
    Hadamard Wellposedness for a Class of Nonlinear Shallow Shell Problems.
    Catherine Lebiedzik*, Wayne State University
    (1011-35-392)
  • 10:00 a.m.
    The Vlasov-Poisson System with Infinite Mass and Energy.
    Stephen D Pankavich*, Indiana University
    (1011-35-374)
  • 10:30 a.m.
    Solvability of the Possio integral equation.
    Peter L Polyakov*, University of Wyoming
    (1011-45-184)
  • 11:00 a.m.
    Stochastic Differential Equations in a Hilbert Space Induced from a Fractional Brownian Motion.
    Bozenna J. Pasik-Duncan*, University of Kansas
    (1011-60-384)
• Sunday October 23, 2005, 8:30 a.m.-11:15 a.m.
  Special Session on Commutative Algebra, III
  Room 106, Avery Hall
  Organizers:
  Lars Winther Christensen, University of Nebraska-Lincoln winther@math.unl.edu
  Srikanth B. Iyengar, University of Nebraska-Lincoln iyengar@math.unl.edu
  Sean M. Sather-Wagstaff, California State University, Dominguez Hills swagstaff@math.unl.edu
  

  • 8:30 a.m.
    Vanishing of Ext and Tor over certain local rings.
    David A. Jorgensen*, University of Texas at Arlington
    (1011-13-272)
  • 9:30 a.m.
    Strict Map of Modules and Intersection Multiplicity.
    Sankar P Dutta*, Dept. of Mathematics, University of Illinois at Urbana-Champaign
    (1011-13-56)
  • 10:30 a.m.
    Square-zero matrices over commutative local rings.
    Luchezar L. Avramov*, University of Nebraska, Lincoln
    Ragnar-Olaf Buchweitz, Universty of Toronto
    Srikanth Iyengar, University of Nebraska
    Claudia Miller, Syracuse University
    (1011-13-259)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on K-Theory and Algebraic Cycles
  Room 109, Avery Hall
  Organizers:
  Christian Haesemeyer, University of Illinois at Urbana-Champaign chh@math.uiuc.edu
  Gregory Grant Piepmeyer, University of Nebraska-Lincoln gpiepmey@math.unl.edu
  Mark Edward Walker, University of Nebraska-Lincoln mwalker@math.unl.edu
  

  • 8:30 a.m.
    Two Extended Forms of the Hirzebruch-Riemann-Roch Formula.
    C-Y. Jean Chan*, Department of Mathematical Sciences, University of Arkansas
    (1011-13-284)
  • 9:00 a.m.
    Comparing cycles in positive and mixed characteristic.
    Paul C Roberts*, University of Utah
    (1011-13-229)
  • 10:00 a.m.
    Projective modules over smooth real affine varieties.
    S. M. Bhatwadekar, School of Mathematics, Tata Institute of Fundamental Research, India
    Mrinal K. Das*, University of Kansas
    Satya Mandal, University of Kansas
    (1011-13-247)
  • 10:30 a.m.
    Cyclic homology, $cdh$-cohomology and negative $K$-theory.
    G Corti\~nas, Universidad de Valladolid
    C Haesemeyer, University of Illinois
    M Schlichting, Louisiana State University
    C Weibel*, Rutgers University
    (1011-19-63)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Analysis of Partial Differential and Integral Equations, IV
  Room 232, Burnett Hall
  Organizers:
  Congming Li, University of Colorado Congming.Li@colorado.edu
  

  • 8:30 a.m.
    A parabolic equation with coefficients in a new Kato type class.
    Qi S. Zhang*, Math. Dept. University of California Riverside
    (1011-35-293)
  • 9:00 a.m.
    Isolated Singularities of Nonlinear Elliptic Inequalities.
    Steven D. Taliaferro*, Texas A&M University
    (1011-35-72)
  • 9:30 a.m.
    Ramified transportation and the formation of tree leaves.
    Qinglan Xia*, University of California at Davis
    (1011-49-318)
  • 10:00 a.m.
    Global Well-Posedness of Some PDEs of Fluid Type.
    Tom Hou, CalTech
    Congming Li*, Applied Math, Univ of Colorado, Boulder, CO 80309
    (1011-35-69)
  • 10:30 a.m.
    Vorticity and Regularity of Viscous 3D Incompressible Flows.
    Ning Ju*, Oklahoma State University
    (1011-35-18)
  • 11:00 a.m.
    Stability of Traveling wave solutions of Nonlinear Reaction Diffusion Equations.
    Xiao-Jie Hou, The University of Cincinnati
    Yi Li*, University of Iowa
    (1011-35-386)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Undergraduate Research, IV
  Room 115, Avery Hall
  Organizers:
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  Gordon S. Woodward, University of Nebraska-Lincoln gwoodwar@math.unl.edu
  

  • 8:30 a.m.
    Sampled-Data Stabilization of a Beam Equation.
    Jonas Azzam, University of Nebraska-Lincoln
    Jesse Windle*, University of Texas-Austin
    (1011-93-309)
  • 9:00 a.m.
    Alexander Quandle Identification.
    Gabriel Murillo*, University of California, Riverside
    Sam Nelson, University of California, Riverside
    Anthony Thompson, University of California, Riverside
    (1011-55-341)
  • 9:30 a.m.
    Twist Number for Graphs.
    Thomas Albertson*, California State University, Long Beach
    (1011-05-312)
  • 10:00 a.m.
    A Genetic Algorithm For the Minimum Tollbooth Problem.
    Corby Harwood*, Whitworth College, Spokane, WA
    (1011-90-335)
  • 10:30 a.m.
    Virtually cyclic subgroups of three-dimensional crystallographic groups.
    Andrew Gainer*, Mercer University, Macon, GA
    Lisa Lackney, University of Akron
    Katelyn Parker, Wellesley College
    (1011-20-332)
  • 11:00 a.m.
    The Pebbling Number for Graphs.
    Joyce Charlesworth, Warren-Wilson College
    Theang Ho*, University of Nebraska-Lincoln
    Brian Keinath, Central Michigan University
    David Lin, Princeton University
    (1011-05-338)
• Sunday October 23, 2005, 8:30 a.m.-10:50 a.m.
  Special Session on Algebraic Geometry, IV
  Room 111, Avery Hall
  Organizers:
  Brian Harbourne, University of Nebraska-Lincoln bharbour@math.unl.edu
  Bangere P. Purnaprajna, University of Kansas purna@math.ku.edu
  

  • 8:30 a.m.
    Set theoretic complete intersection of ideals in a regular affine algebra.
    Ze Min Zeng*, Washington University in St. Louis
    (1011-13-185)
  • 9:00 a.m.
    Generators for vector bundles.
    Mohan Kumar Neithalath, Washington University in St. Louis, St. Louis MO
    A. P. Rao, University of Missouri -St. Louis
    Ravindra V Girivaru*, Washington University in St. Louis, St. Louis MO
    (1011-14-221)
  • 9:30 a.m.
    The Jacobian Conjecture as a Problem in Combinatorics.
    David L Wright*, Washington University
    (1011-14-196)
  • 10:00 a.m.
    Minimal Separators of fat points in $\mathbb{P}^n$.
    Elena Guardo*, Dipartimento di Matematica e Informatica - Catania - Italy
    Lucia Marino, Dipartimento di Matematica e Informatica - Catania - Italy
    (1011-14-265)
  • 10:30 a.m.
    The Green-Griffiths-Kobayashi conjectures on algebraic degeneracy.
    Karen Anne Chandler*, University of Missouri - St. Louis
    Pit-Mann Wong, University of Notre Dame
    (1011-13-364)
• Sunday October 23, 2005, 8:30 a.m.-9:20 a.m.
  Special Session on Scattering and Spectral Problems in Geometry, IV
  Room 205, Burnett Hall
  Organizers:
  Peter A. Perry, University of Kentucky perry@ms.uky.edu
  Alejandro Uribe, University of Michigan uribe@umich.edu
  

  • 8:30 a.m.
    Determinant of Laplacian associated to a Kleinian group.
    Andrew McIntyre*, Centre de recherches math\'ematiques
    (1011-58-350)
  • 9:00 a.m.
    Linearized boundary distance rigidity problem and Dirichlet-to-Neumann map.
    Vladimir A. Sharafutdinov*, Sobolev Institute of Mathematics
    (1011-58-139)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Recent Progress in Operator Algebras, IV
  Room 118, Burnett Hall
  Organizers:
  Allan P. Donsig, University of Nebraska-Lincoln adonsig@math.unl.edu
  David R. Pitts, University of Nebraska-Lincoln dpitts@math.unl.edu
  

  • 8:30 a.m.
    A Contractive MASA Bimodule Projection Whose Range Is Not a Sub-TRO.
    Vern Ival Paulsen*, Mathematics Department, University of Houston
    (1011-47-267)
  • 9:00 a.m.
    Operator Quantum Error Correction.
    David W Kribs*, Institute for Quantum Computing and University of Guelph
    (1011-81-121)
  • 9:30 a.m.
    An additive formula for invariant subspaces and their complements.
    Xiang Fang*, Kansas State University
    (1011-47-154)
  • 10:00 a.m.
    Covariant Poisson structures on complex Grassmannians.
    A. Sheu*, University of Kansas
    N. Ciccoli, Universit/'a di Perugia
    (1011-53-313)
  • 10:30 a.m.
    ${Z}^{2}$-actions and semicrossed products.
    Justin R. Peters*, Iowa State University
    (1011-47-65)
  • 11:00 a.m.
    Fock space techniques in tensor algebras of directed graphs.
    Alvaro Arias*, University of Denver
    (1011-46-120)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Geometric Methods in Group Theory and Semigroup Theory, IV
  Room 107, Burnett Hall
  Organizers:
  Susan M. Hermiller, University of Nebraska-Lincoln smh@math.unl.edu
  John C. Meakin, University of Nebraska-Lincoln jmeakin@math.unl.edu
  Zoran Sunik, Texas A&M University sunik@math.tamu.edu
  

  • 8:30 a.m.
    What properties do groups of random knots have?
    Paul Schupp*, University of Illinois
    Kari Barkley, Lafayette College
    (1011-20-274)
  • 9:00 a.m.
    Ends for Monoids and Semigroups.
    Vesna Kilibarda*, Indiana University Northwest
    David A. Jackson, Saint Louis University
    (1011-20-27)
  • 9:30 a.m.
    A criterion for property FA$_n$.
    Angela K. Barnhill*, The Ohio State University
    (1011-20-331)
  • 10:00 a.m.
    Artin groups in a continuous context.
    Jon McCammond*, UC Santa Barbara
    (1011-20-169)
  • 10:30 a.m.
    Rewriting systems and orderings on Artin monoids.
    Patrick Bahls*, The University of North Carolina, Asheville
    Tyler Smith, Vanderbilt University
    (1011-20-246)
  • 11:00 a.m.
    Minimal Splittings of Coxeter Groups.
    Michael L Mihalik*, Vanderbilt University
    Steve Tschantz, Vanderbilt University
    (1011-20-285)
• Sunday October 23, 2005, 8:30 a.m.-11:20 a.m.
  Special Session on Graph Theory, IV
  Room 102, Burnett Hall
  Organizers:
  Andrew J. Radcliffe, University of Nebraska-Lincoln jradclif@math.unl.edu
  Zsuzsanna Szaniszlo, Valparaiso University zsuzsanna.szaniszlo@valpo.edu
  Jonathan Cutler, University of Nebraska-Lincoln jcutler@math.unl.edu
  

  • 8:30 a.m.
    Discussion
  • 9:00 a.m.
    Multidecomposition of the Complete Graph with Various Leaves.
    Atif Abueida*, University of Dayton
    (1011-05-305)
  • 9:30 a.m.
    Ranks of Complements of Graphs.
    Gayla S Domke*, Purdue University North Central
    George J Davis, Georgia State University
    Charles R Garner, Rockdale County High School
    (1011-05-351)
  • 10:00 a.m.
    Combinatorial structures with regular (full) automorphism group.
    Robert Jajcay*, Indiana State University
    (1011-05-358)
  • 10:30 a.m.
    Hamilton paths in cubic Cayley graphs.
    Henry H Glover*, Ohio State University
    Dragan Maru\v si\v c, IMFM, University of Ljubljana
    (1011-05-190)
  • 11:00 a.m.
    Local $3$-colorings of complete graphs.
    Steven Klee, Valparaiso University
    Daniel Menna, Valparaiso University
    Amy Palash, Valparaiso University
    Zsuzsanna Szaniszlo*, Valparaiso University
    William Young, Valparaiso University
    (1011-05-242)
• Sunday October 23, 2005, 9:00 a.m.-11:20 a.m.
  Special Session on Geometry of Differential Equations, IV
  Room 204, Burnett Hall
  Organizers:
  Jeanne Nielsen Clelland, University of Colorado Jeanne.Clelland@Colorado.EDU
  Irina A. Kogan, North Carolina State University iakogan@ncsu.edu
  Zhijun Qiao, University of Texas-Pan American qiao@utpa.edu
  

  • 9:00 a.m.
    Moving Frames for Lie Pseudo-groups.
    Peter J. Olver*, University of Minnesota
    (1011-58-31)
  • 9:30 a.m.
    Variational Calculus in Moving Frames.
    Irina A Kogan*, North Carolina State University
    Ian Anderson, Utah State University
    (1011-53-71)
  • 10:00 a.m.
    Shallow water equation on a symplectic submanifold and solutions.
    Zhijun George Qiao*, University of Texas - Pan American
    (1011-35-85)
  • 10:30 a.m.
    Geometric Invariant Theory on Killing Tensors.
    Roman Smirnov*, Department of Mathematics and Statistics, Dalhousie University
    (1011-53-343)
  • 11:00 a.m.
    Representations of low-dimensional Lie algebras.
    Ryad A Ghanam*, University of Pittsburgh at Greensburg
    (1011-53-214)
• Sunday October 23, 2005, 9:00 a.m.-11:20 a.m.
  Special Session on Representation Theory of Noetherian Rings, III
  Room 112, Avery Hall
  Organizers:
  Roger A. Wiegand, University of Nebraska-Lincoln rwiegand@math.unl.edu
  Sylvia Margaret Wiegand, University of Nebraska-Lincoln swiegand@math.unl.edu
  

  • 9:00 a.m.
    Mixed Polynomial/Power Series Rings and Relations among their Spectra.
    William Heinzer*, Purdue University
    Christel Rotthaus, Michigan State University
    Sylvia Wiegand, University of Nebraska
    (1011-13-68)
  • 9:30 a.m.
    Generic Rings for Local Cohomology.
    Raymond C Heitmann*, University of Texas at Austin
    (1011-13-276)
  • 10:00 a.m.
    The core of ideals in arbitrary characteristic.
    Louiza Fouli*, Purdue University
    (1011-13-257)
  • 10:30 a.m.
    Integrally closed overrings of two-dimensional Noetherian domains.
    Bruce Olberding*, New Mexico State University
    (1011-13-223)
  • 11:00 a.m.
    Rings cofinite in their Henselization.
    Peter Vamos*, Department of Mathematical Sciences, University of Exeter, UK
    (1011-13-311)
• Sunday October 23, 2005, 9:00 a.m.-11:20 a.m.
  Special Session on Mathematical and Engineering Aspects of Coding Theory, IV
  Room 121, Burnett Hall
  Organizers:
  Lance Perez, University of Nebraska-Lincoln lperez@unl.edu
  Judy Walker, University of Nebraska-Lincoln jwalker@math.unl.edu
  

  • 9:00 a.m.
    Duality Theory for Space-Time Codes over Finite Fields.
    David Grant*, University of Colorado at Boulder
    Mahesh K Varanasi, University of Colorado at Boulder
    (1011-94-291)
  • 9:30 a.m.
    McEliece Theorems for Cyclic Codes over Galois Rings.
    Daniel J. Katz*, Princeton University, Department of Mathematics
    (1011-05-253)
  • 10:00 a.m.
    s-Extremal Additive GF(4) Codes.
    Jon-Lark Kim*, University of Louisville
    Judy Walker, University of Nebraska -- Lincoln
    (1011-94-289)
  • 10:30 a.m.
    Self-Dual Codes over $Z_8$ and $Z_9$.
    Steven Dougherty, University of Scranton
    Aaron Gulliver*, University of Victoria
    (1011-94-144)
  • 11:00 a.m.
    Invariant-based Face Recognition.
    Nigel Boston*, University of Wisconsin, Madison
    (1011-22-283)
• Sunday October 23, 2005, 11:40 a.m.-12:30 p.m.
  Invited Address
  LDPC codes and their pseudocodewords.
  Room 115, Burnett Hall
  Judy L. Walker*, University of Nebraska
  (1011-94-315)
• Sunday October 23, 2005, 2:00 p.m.-3:20 p.m.
  Special Session on Nonlinear Analysis and Control of Partial Differential Equations, V
  Room 120, Burnett Hall
  Organizers:
  George Avalos, University of Nebraska-Lincoln gavalos@math.unl.edu
  Petronela Radu, University of Nebraska-Lincoln pradu@math.unl.edu
  Mohammad A. Rammaha, University of Nebraska-Lincoln rammaha@math.unl.edu
  Richard L. Rebarber, University of Nebraska-Lincoln rrebarbe@math.unl.edu
  

  • 2:00 p.m.
    A discontinuous solution for the time-dependent compressible Navier-Stokes system in a bounded domain.
    Minsu Song*, Department of Mathematics,Pohang University of Science and Technology,Korea
    (1011-35-28)
  • 2:30 p.m.
    Computation of controllable pairs in discretizations of the Schroedinger equation.
    Katherine A. Kime*, Department of Mathematics and Statistics, University of Nebraska at Kearney, Kearney NE 68849
    (1011-93-162)
  • 3:00 p.m.
    Some controllability results for parabolic equations by means of multiplicative and nonnegative additive controls of local support.
    Alexander Y Khapalov*, Washington State University
    Luis Alberto Fernandez, Universidad de Cantabria, Spain
    (1011-93-324)
• Sunday October 23, 2005, 2:00 p.m.-2:50 p.m.
  Special Session on Calculus of Variations, V
  Room 203, Burnett Hall
  Organizers:
  Mikil Foss, University of Nebraska-Lincoln mfoss@math.unl.edu
  Giovanni Leoni, Carnegie Mellon University giovanni@andrew.cmu.edu
  

  • 2:00 p.m.
    The structure of spaces of maps into homogeneous spaces.
    Dave Auckly*, Kansas State University
    Lev Kapitanski, University of Miami
    (1011-58-24)
  • 2:30 p.m.
    Homogeneous spaces and Faddeev-Skyrme model.
    Sergiy V. Koshkin*, Kansas State University
    (1011-58-275)
• Sunday October 23, 2005, 2:00 p.m.-2:50 p.m.
  Special Session on Dynamic Equations on Time Scales, I
  Room 110, Avery Hall
  Organizers:
  Lynn H. Erbe, University of Nebraska-Lincoln lerbe@math.unl.edu
  Allan C. Peterson, University of Nebraska-Lincoln apeterso@math.unl.edu
  

  • 2:00 p.m.
    Positive solutions of the nonlinear semipositone Sturm-Liouville problem on time scales.
    Nickolai Kosmatov*, University of Arkansas at Little Rock
    (1011-34-362)
  • 2:30 p.m.
    Discrete Solutions of Basic Diffusion Equations.
    Andreas Dr. Ruffing, Technical University Munich, Germany
    Maria Meiler*, Technical University Munich, Germany
    (1011-00-346)
• Sunday October 23, 2005, 2:00 p.m.-3:20 p.m.
  Special Session on Geometric Methods in Group Theory and Semigroup Theory, V
  Room 107, Burnett Hall
  Organizers:
  Susan M. Hermiller, University of Nebraska-Lincoln smh@math.unl.edu
  John C. Meakin, University of Nebraska-Lincoln jmeakin@math.unl.edu
  Zoran Sunik, Texas A&M University sunik@math.tamu.edu
  

  • 2:00 p.m.
    Embeddings of right-angled Artin groups into graph braid groups.
    Lucas A Sabalka*, University of Illinois at Urbana-Champaign
    (1011-20-125)
  • 2:30 p.m.
    The Simultaneous Conjugacy Problem for Thompson's Group $F$ is Solvable.
    Francesco Matucci*, Cornell University
    Martin Kassabov, Cornell University
    (1011-20-128)
  • 3:00 p.m.
    On the Homotopy Classification of 1-Relator Groups.
    Jens Harlander*, Western Kentucky University
    Jaqueline A Jensen, Sam Houston State University
    (1011-20-383)

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