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AMS Sectional Meeting Full Program

Current as of Saturday, April 28, 2007 00:31:19

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Program  |  Deadlines  |  Registration/Housing/Etc.  |  Inquiries:  meet@ams.org

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2007 Spring Western Section Meeting
Tucson, AZ, April 21-22, 2007 (Saturday - Sunday)
Meeting #1027

Associate secretaries:
Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu

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Saturday April 21, 2007

• Saturday April 21, 2007, 7:30 a.m.-4:00 p.m.
  Meeting Registration
  Lobby, Integrated Learning Center
• Saturday April 21, 2007, 7:30 a.m.-4:00 p.m.
  Exhibit and Book Sale
  Lobby, Integrated Learning Center
• Saturday April 21, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Number Theory in the Southwest, I
  Room 310, Modern Languages
  Organizers:
  Dinesh S. Thakur, University of Arizona thakur@math.arizona.edu
  Douglas L. Ulmer, University of Arizona ulmer@math.arizona.edu
  

  • 8:00 a.m.
    Modular forms mod p and relations among Heegner points.
    Alexandru Buium*, University of New Mexico
    Bjorn Poonen, University of California, Berkeley
    (1027-11-24)
  • 8:30 a.m.
    Centralizers in Langlands dual groups over formal Taylor series.
    D. Arinkin*, California Institute of Technology
    (1027-11-232)
  • 9:00 a.m.
    Integral monodromy of curves with given $p$-rank.
    Rachel J. Pries*, Colorado State University
    Jeff Achter, Colorado State University
    (1027-11-143)
  • 9:30 a.m.
    Properties of Certain Weakly Holomorphic Modular Forms.
    W. Duke, UCLA
    P. Jenkins*, UCLA
    (1027-11-189)
  • 10:00 a.m.
    Congruences among automorphic forms on U(2,2) and the Bloch-Kato conjecture.
    Krzysztof Klosin*, University of Utah
    (1027-11-96)
  • 10:30 a.m.
    Subvarieties of Drinfeld Jacobians and congruences.
    Mihran Papikian*, Stanford University
    (1027-11-160)
• Saturday April 21, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Representations of Algebras, I
  Room 210, Modern Languages
  Organizers:
  Frauke Maria Bleher, University of Iowa fbleher@math.uiowa.edu
  Birge K. Huisgen-Zimmermann, University of California Santa Barbara birge@math.ucsb.edu
  Dan Zacharia, Syracuse University zacharia@mailbox.syr.edu
  

  • 8:00 a.m.
    Complexity and AR quivers of selfinjective algebras.
    Edward L Green*, Virginia Tech
    Dan Zacharia, Syracuse University
    (1027-16-151)
  • 8:30 a.m.
    One-sided split torsion torsionfree triples in module categories.
    Manuel Saorin*, Universidad de Murcia (SPAIN)
    (1027-16-43)
  • 9:00 a.m.
    Reflections of Regular Algebras I.
    Ellen E. Kirkman*, Wake Forest University
    James J. Kuzmanovich, Wake Forest University
    J. J. Zhang, University of Washington
    (1027-16-179)
  • 9:30 a.m.
    Reflections of Regular Algebras II: Quantum Polynomial Algebras.
    Ellen Kirkman, Wake Forest University
    James Kuzmanovich*, Wake Forest University
    James Zhang, University of Washington
    (1027-16-167)
  • 10:00 a.m.
    Endostructure and Stackability of Nilpotent Linear Operators.
    Claus Michael Ringel, Bielefeld University, Germany
    Markus Schmidmeier*, Florida Atlantic University
    (1027-47-203)
  • 10:30 a.m.
    Chain conditions for unital Leavitt path algebras.
    Gene D. Abrams*, University of Colorado at Colorado Springs
    Gonzalo Aranda Pino, Centre de Recerca Matem\'{a}tica, Bellaterra (Barcelona), SPAIN
    Mercedes Siles Molina, Universidad de Malaga, Malaga, SPAIN
    (1027-16-47)
• Saturday April 21, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Mathematical Modeling in Biology and Medicine, I
  Room 140, Integrated Learning Center
  Organizers:
  Carlos Castillo-Chavez, Arizona State University chavez@math.asu.edu
  Yang Kuang, Arizona State University kuang@asu.edu
  Hal L. Smith, Arizona State University halsmith@asu.edu
  Horst R. Thieme, Arizona State University thieme@math.asu.edu
  

  • 8:00 a.m.
    A model for the dynamics and growth of bacterial colonies.
    Joceline C. Lega*, University of Arizona
    (1027-92-238)
  • 8:30 a.m.
    The Elastic Dynamics of Biological Growth.
    Alain Goriely*, Department of Mathematics, University of Arizona
    Rebecca Vandiver, Program in Applied Mathematics, University of Arizona
    (1027-92-129)
  • 9:00 a.m.
    Bacterial Aggregation Dynamics.
    David M Bortz*, University of Colorado
    John G Younger, University of Michigan
    (1027-92-157)
  • 9:30 a.m.
    Mathematical Models of A Neuron Firing.
    J Abiva, Iowa University
    F. Berezovskaya, Howard University
    E. T. Camacho*, Loyola Marymount University
    E. Joseph, University of the Virgin Islands
    G. Karev, National Center for Biotechnological Information, National Institute of Health
    A. Mikaelian, University of California, Davis
    C. Rogers, University of Texas, El Paso
    A. Wirkus, California State Polytechnic University, Pomona
    (1027-92-225)
  • 10:00 a.m.
    Modeling Type 1 diabetes in NOD mice.
    Joseph M. Mahaffy*, San Diego State University
    (1027-92-164)
  • 10:30 a.m.
    Pattern formation with full cross diffusion effect.
    Dung Le*, University of Texas at San Antonio
    (1027-35-82)
• Saturday April 21, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Automorphisms of Curves, I
  Room 413, Modern Languages
  Organizers:
  Aaron D. Wootton, University of Portland wootton@up.edu
  Anthony Weaver, Bronx Community College anthonyweaver@mac.com
  S. Allen Broughton, Rose-Hulman Institute of Technology allen.broughton@rose-hulman.edu
  

  • 8:00 a.m.
    Complete bipartite maps, factorisations of groups, and generalised Fermat curves.
    Gareth A. Jones*, University of Southampton, Southampton, UK
    (1027-20-187)
  • 9:00 a.m.
    Double coverings of hyperelliptic real algebraic curves.
    Emilio Bujalance, Dep. Matematicas Fundamentales, UNED, Spain
    Francisco Javier Cirre*, Dep. Matematicas Fundamentales, UNED, Spain
    Jose Manuel Gamboa, Dep. Algebra, Facultad de Matematicas, UCM, Madrid, Spain
    (1027-30-162)
  • 9:30 a.m.
    Generalized Fermat curves.
    Gabino Gonzalez-Diez*, Universidad Aut\'onoma de Madrid. Spain.
    Ruben Hidalgo, UTFSM, Valpara\'iso, Chile.
    Maximiliano Leyton, UTFSM, Valpara\'iso, Chile
    (1027-30-113)
  • 10:00 a.m.
    The Full Automorphism Group of a Cyclic $p$-gonal Surface.
    Aaron Wootton*, University of Portland
    (1027-20-79)
  • 10:30 a.m.
    Canonical Forms for Conjugacy Classes of Prime Order Symplectic Matrices in $\mathbf{Sp(2g,{\mathbb{Z}})}$.
    Jane Gilman*, Rutgers-Newark
    (1027-20-40)
• Saturday April 21, 2007, 8:00 a.m.-10:40 a.m.
  Special Session on Subjects in and Around Fluid Dynamics, I
  Room 141, Integrated Learning Center
  Organizers:
  Robert Owczarek, Los Alamos National Laboratory rmo@lanl.gov
  Mikhail Stepanov, University of Arizona stepanov@math.arizona.edu
  

  • 8:00 a.m.
    Plant patterns and phyllotaxis; A combination of mechanics and chemistry?
    Allan C Newell*, Department of Mathematics, The University of Arizona
    (1027-51-58)
  • 9:00 a.m.
    Path Integral Approach to Model/Data Assimilation.
    Juan M Restrepo*, University of Arizona
    (1027-76-44)
  • 10:00 a.m.
    Supercavitating flow of a free jet around wedges.
    Y A Antipov*, Louisiana State University
    V V Silvestrov, Gubkin Russian State University of Oil and Gas
    A Y Zemlyanova, Louisiana State University
    (1027-76-124)
• Saturday April 21, 2007, 8:00 a.m.-10:40 a.m.
  Special Session on Spectral Analysis on Singular and Noncompact Manifolds, I
  Room 125, Integrated Learning Center
  Organizers:
  Juan Bautista Gil, Pennyslvania State University jgil@psu.edu
  Thomas Krainer, Pennsylvania State University krainer@psu.edu
  

  • 8:00 a.m.
    Regularized traces and K-theory invariants of parametric pseudodifferential operators.
    Matthias Lesch*, University of Bonn
    (1027-58-243)
  • 9:00 a.m.
    Elliptic theory on orbifolds (after Bogdan Bucicovshi).
    Dan Burghelea*, Department of Mathematics, OSU, Columbus, OH
    (1027-53-135)
  • 10:00 a.m.
    Vertical Blow-Ups for Prescribed Mean Curvature Equations on Nonconvex Domains.
    Thalia D. Jeffres*, Wichita State University
    Kirk Lancaster, Wichita State University
    (1027-35-107)
• Saturday April 21, 2007, 8:30 a.m.-10:50 a.m.
  Special Session on Special Functions and Orthogonal Polynomials, I
  Room 130, Integrated Learning Center
  Organizers:
  Diego Dominici, State University of New York at New Paltz dominicd@newpaltz.edu
  Robert S. Maier, University of Arizona rsm@math.arizona.edu
  

  • 8:30 a.m.
    Infinite products with nonnegative integer coefficients.
    Alexander Berkovich*, University of Florida , Gainesville
    (1027-11-139)
  • 9:00 a.m.
    Tridiagonal pairs and the $q$-tetrahedron algebra.
    Paul M Terwilliger*, Department of Mathematics, University of Wisconsin
    (1027-33-63)
  • 9:30 a.m.
    Inequalities and bounds for elliptic integrals.
    Edward George Neuman*, Southern Illinois University Carbondale
    (1027-33-46)
  • 10:00 a.m.
    New Cyclic Identities and Generalized Landen Transformation Formulas for Jacobi Elliptic Functions.
    Uday P Sukhatme*, Department of Physics, Indiana University - Purdue University Indianapolis
    Avinash Khare, Institute of Physics, Bhubaneswar, Orissa, India
    (1027-33-161)
  • 10:30 a.m.
    Rational Landen transformations.
    Victor H. Moll*, Tulane University, New Orleans, LA 70118
    (1027-33-30)
• Saturday April 21, 2007, 8:30 a.m.-10:20 a.m.
  Special Session on Inverse Problems for Wave Propagation, I
  Room 137, Integrated Learning Center
  Organizers:
  Liliana Borcea, Rice University borcea@caam.rice.edu
  

  • 8:30 a.m.
    Title: Creating a new medical diagnostic tool by imaging shear stiffness in tissue.
    Joyce R McLaughlin*, Rensselaer Polytechnic Institute
    (1027-35-37)
  • 9:30 a.m.
    On the use of transmission eigenvalues to estimate the index of refraction from far field data.
    Fioralba Cakoni*, University of Delaware
    (1027-35-26)
  • 10:00 a.m.
    Direct imaging algorithms for extended targets.
    Hongkai Zhao*, UC Irvine
    (1027-65-152)
• Saturday April 21, 2007, 8:30 a.m.-10:50 a.m.
  Special Session on Graph Theory and Combinatorics, I
  Room 304, Modern Languages
  Organizers:
  Sebastian M. Cioaba, University of California at San Diego scioaba@math.ucsd.edu
  Joshua Cooper, University of South Carolina cooper@math.sc.edu
  

  • 8:30 a.m.
    Perfect matchings in regular graphs from eigenvalues.
    Sebastian M Cioab\u{a}*, University of California at San Diego
    David A Gregory, Queen's University
    Willem Haemers, Tilburg University
    (1027-05-83)
  • 9:00 a.m.
    Set systems without a simplex or a cluster.
    Peter Keevash*, Caltech
    Dhruv Mubayi, University of Illinois, Chicago
    (1027-05-94)
  • 9:30 a.m.
    Realizing Degree Sequences with Graphs having Nowhere-zero 3-Flows.
    Rong Luo, Middle Tennessee State University
    Rui Xu*, University of West Georgia
    Wenan Zang, University of Hong Kong
    Cun-Quan Zhang, West Virginia University
    (1027-05-51)
  • 10:00 a.m.
    New Models and Questions in Geometric Random Graphs.
    Ross M. Richardson*, University of California, San Diego
    (1027-05-20)
  • 10:30 a.m.
    Gallai Multigraphs.
    Kyle Pula*, University of Denver
    (1027-05-08)
• Saturday April 21, 2007, 9:00 a.m.-10:40 a.m.
  Special Session on Partial Differential Equations and Geometric Analysis, I
  Room 119, Integrated Learning Center
  Organizers:
  Sunhi Choi, University of Arizona schoi@math.arizona.edu
  Lennie Friedlander, University of Arizona friedlan@math.arizona.edu
  David Alan Glickenstein, University of Arizona glickenstein@math.arizona.edu
  

  • 9:00 a.m.
    Inverse Spectral Problems in Rectangular Domains.
    Gregory Eskin, UCLA
    James Ralston*, UCLA
    (1027-35-221)
  • 10:00 a.m.
    The inverse problems for the Schrodinger equations with time- dependent electromagnetic potentials and the Aharonov-Bohm effect.
    Gregory Eskin*, UCLA, Department of Mathematics
    (1027-35-52)
• Saturday April 21, 2007, 9:00 a.m.-10:50 a.m.
  Special Session on Algebraic Combinatorics, I
  Room 303, Modern Languages
  Organizers:
  Helene Barcelo, Arizona State University barcelo@asu.edu
  Susanna Fishel, Arizona State University fishel@math.la.asu.edu
  

  • 9:00 a.m.
    Cluster complexes of bordered surfaces.
    Sergey Fomin*, University of Michigan
    Michael Shapiro, Michigan State University
    Dylan Thurston, Barnard College, Columbia University
    (1027-05-131)
  • 10:00 a.m.
    Fuss-Catalan combinatorics for finite Coxeter groups.
    Drew Armstrong*, School of Mathematics, University of Minnesota
    (1027-05-183)
  • 10:30 a.m.
    Multi-ordered Differential Posets.
    Kendra S Killpatrick*, Pepperdine University
    (1027-05-156)
• Saturday April 21, 2007, 9:00 a.m.-10:50 a.m.
  Special Session on Operator Algebras, I
  Room 411, Modern Languages
  Organizers:
  Steven P. Kaliszewski, Arizona State University kaliszewski@asu.edu
  Jack Spielberg, Arizona State University Jack.Spielberg@asu.edu
  John C. Quigg, Arizona State University quigg@asu.edu
  

  • 9:00 a.m.
    Nonstable $K$-Theory of Unital Free Product C*-Algebras.
    Bruce Blackadar*, Department of Mathematics, University of Nevada, Reno
    (1027-46-191)
  • 10:00 a.m.
    Recent progress on the Cuntz semigroup.
    Andrew S. Toms*, York University, Toronto, Ontario, Canada
    (1027-46-31)
  • 10:30 a.m.
    Applications of the Cuntz Semigroup.
    Nate Brown*, Penn State University
    (1027-47-48)
• Saturday April 21, 2007, 9:00 a.m.-10:40 a.m.
  Special Session on Moduli Spaces and Invariant Theory, I
  Room 202, Modern Languages
  Organizers:
  Philip Foth, University of Arizona foth@math.arizona.edu
  Yi Hu, University of Arizona yhu@math.arizona.edu
  

  • 9:00 a.m.
    Higher Dimensional Generalizations of the Geometric Shafarevich Conjecture.
    Sandor J Kovacs*, University of Washington
    (1027-14-118)
  • 10:00 a.m.
    The orbifold Chow ring of hypertoric Deligne-Mumford stacks.
    Yunfeng Jiang*, The University of British Columbia
    (1027-14-29)
• Saturday April 21, 2007, 9:30 a.m.-10:50 a.m.
  Special Session on New Developments and Directions in Random Matrix Theory, I
  Room 314, Modern Languages
  Organizers:
  Peter David Miller, University of Michigan millerpd@umich.edu
  Estelle Basor, California Polytechnic State University ebasor@calpoly.edu,
  

  • 9:30 a.m.
    Some properties of the largest eigenvalues of complex Wishart matrices for fairly general population covariance.
    Noureddine El Karoui*, UC Berkeley/ Department of Statistics
    (1027-62-230)
  • 10:00 a.m.
    Spike phenomena in some high-dimensional eigen-analysis problems.
    Debashis Paul*, Department of Statistics, University of California, Davis
    (1027-62-148)
  • 10:30 a.m.
    CLTs for linear statistics of eigenvalues: A unified approach.
    Sourav Chatterjee*, University of California at Berkeley
    (1027-60-85)
• Saturday April 21, 2007, 11:00 a.m.-11:50 a.m.
  Invited Address
  The weak null condition and global existence for Einstein's equations.
  Room 155, Integrated Learning Center
  Hans Lindblad*, University of California, San Diego
  (1027-00-03)
• Saturday April 21, 2007, 2:00 p.m.-2:50 p.m.
  Invited Address
  Array Imaging in Random Media.
  Room 155, Integrated Learning Center
  Liliana Borcea*, Rice University
  (1027-35-01)
• Saturday April 21, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Number Theory in the Southwest, II
  Room 310, Modern Languages
  Organizers:
  Dinesh S. Thakur, University of Arizona thakur@math.arizona.edu
  Douglas L. Ulmer, University of Arizona ulmer@math.arizona.edu
  

  • 3:00 p.m.
    On the Diophantine equation $y^2=x^6+k$.
    Andrew Bremner*, Department of Mathematics and Statistics, Arizona State University
    Nikos Tzanakis, Department of Mathematics, University of Iraklion, Crete.
    (1027-11-100)
  • 3:30 p.m.
    Rational points on symmetric varieties.
    Alexander Gorodnik*, CalTech
    Hee Oh, Brown University
    (1027-11-90)
  • 4:00 p.m.
    Epsilon factors for unitary groups.
    Eric Wambach*, California Institute of Technology
    (1027-11-200)
  • 4:30 p.m.
    Number Fields Unramified Away From 2.
    John W Jones*, Arizona State University
    (1027-11-84)
  • 5:00 p.m.
    Exceptional covers of surfaces.
    Jeffrey D. Achter*, Colorado State University
    (1027-14-144)
  • 5:30 p.m.
    A generalization of Jacobi's Derivative Formula to higher derivatives and characteristics.
    David R Grant*, University of Colorado at Boulder
    (1027-11-133)
• Saturday April 21, 2007, 3:00 p.m.-5:40 p.m.
  Special Session on Partial Differential Equations and Geometric Analysis, II
  Room 119, Integrated Learning Center
  Organizers:
  Sunhi Choi, University of Arizona schoi@math.arizona.edu
  Lennie Friedlander, University of Arizona friedlan@math.arizona.edu
  David Alan Glickenstein, University of Arizona glickenstein@math.arizona.edu
  

  • 3:00 p.m.
    Pointwise multipliers of differentiable functions with applications to PDEs.
    Tatyana Shaposhnikova*, Department of Mathematics, Ohio State University, and Department of Mathematics, Linkoeping University, Sweden
    (1027-35-117)
  • 4:00 p.m.
    CMC foliations in asymptotically hyperbolic spaces.
    Rafe Mazzeo*, Stanford University
    Frank Pacard, Universite de Paris XII
    (1027-58-209)
  • 5:00 p.m.
    Well posedness of the free surface Euler equations with or without surface tension.
    Coutand Daniel, UC Davis
    Steve Shkoller*, UC Davis
    (1027-35-218)
• Saturday April 21, 2007, 3:00 p.m.-4:50 p.m.
  Special Session on Advances in Spectral Theory of Operators, I
  Room 133, Integrated Learning Center
  Organizers:
  Roger Roybal, California State University, Channel Islands roger.roybal@csuci.edu
  Michael D. Wills, Weber State University mwills@weber.edu
  

  • 3:00 p.m.
    Invariant Subspaces on the Slit Disk.
    Alexandru Aleman, Lund University, Sweden
    Nathan S Feldman*, Washington & Lee University
    William T. Ross, University of Richmond
    (1027-47-224)
  • 3:30 p.m.
    Approximating composition operator norms on the Dirichlet space.
    Linda J Patton, California Polytechnic State University, San Luis Obispo
    Marian E Robbins*, California Polytechnic State University, San Luis Obispo
    (1027-47-190)
  • 4:00 p.m.
    Stable Invariant Subspaces.
    Hassan Yousefi*, Dept of Math, Weber State University
    (1027-47-147)
  • 4:30 p.m.
    A special compact operator.
    Ramesh Garimella*, Department of Mathematics, University of Central Arkansas
    Volodymyr Hrynkiv, Department of Mathematical Sciences, Worcester Polytechnic Institute
    (1027-47-130)
• Saturday April 21, 2007, 3:00 p.m.-5:40 p.m.
  Special Session on New Developments and Directions in Random Matrix Theory, II
  Room 314, Modern Languages
  Organizers:
  Peter David Miller, University of Michigan millerpd@umich.edu
  Estelle Basor, California Polytechnic State University ebasor@calpoly.edu,
  

  • 3:00 p.m.
    Asymptotics for the determinants of a sum of finite Toeplitz and Hankel matrices generated by different symbols.
    Estelle L Basor*, California Polytechnic State University
    Torsten Ehrhardt, University of California at Santa Cruz
    (1027-82-188)
  • 3:30 p.m.
    Szeg\"o-Widom limit theorems for band-dominated operators with almost periodic coefficients.
    Torsten Ehrhardt*, University of California Santa Cruz
    Bernd Silbermann, Technische Universit\"at Chemnitz, Germany
    Steffen Roch, Technische Universit\"at Darmstadt, Germany
    (1027-46-159)
  • 4:00 p.m.
    The Asymptotic Combinatorics and Dynamics of Random Matrices.
    N M Ercolani*, University of Arizona
    K D T-R McLaughlin, University of Arizona
    V U Pierce, The Ohio State University
    (1027-05-213)
  • 4:30 p.m.
    $\overline{\partial}$ problems in random matrix theory.
    Peter D. Miller*, University of Michigan
    (1027-30-165)
  • 5:00 p.m.
    Discussion
• Saturday April 21, 2007, 3:00 p.m.-5:20 p.m.
  Special Session on Algebraic Combinatorics, II
  Room 303, Modern Languages
  Organizers:
  Helene Barcelo, Arizona State University barcelo@asu.edu
  Susanna Fishel, Arizona State University fishel@math.la.asu.edu
  

  • 3:00 p.m.
    An approach through combinatorics to intersection number questions for the moduli spaces of curves.
    David Rhy\^s Jackson*, University of Waterloo
    (1027-05-35)
  • 4:00 p.m.
    Enumerating Fayers partitions at a root of unity.
    Monica Vazirani*, UC Davis
    Chris Berg, UC Davis
    (1027-05-154)
  • 4:30 p.m.
    Characters Polynomials and Kronecker Products.
    Alain Goupil*, Universite du Quebec ŕ Trois-Rivieres
    (1027-05-89)
  • 5:00 p.m.
    Uniqueness of Lifts of Specht Modules in the Symmetric Group.
    James P Cossey*, University of Arizona
    (1027-20-12)
• Saturday April 21, 2007, 3:00 p.m.-6:20 p.m.
  Special Session on Special Functions and Orthogonal Polynomials, II
  Room 130, Integrated Learning Center
  Organizers:
  Diego Dominici, State University of New York at New Paltz dominicd@newpaltz.edu
  Robert S. Maier, University of Arizona rsm@math.arizona.edu
  

  • 3:00 p.m.
    $C_{\ell}$ mock theta functions and ``positivity'' conjectures.
    Stephen C. Milne*, The Ohio State University
    (1027-33-123)
  • 3:30 p.m.
    Ramanujan's symmetric theta functions and their equations.
    Seung H. Son*, University of Colorado at Colorado Springs
    (1027-33-69)
  • 4:00 p.m.
    Well-poised basic and elliptic Taylor expansions.
    Michael J Schlosser*, University of Vienna
    (1027-33-219)
  • 4:30 p.m.
    The Schottky-Klein prime function.
    Darren G Crowdy*, Imperial College London & MIT
    (1027-30-55)
  • 5:00 p.m.
    A generating function for the N-soliton solutions of the Kadomtsev-Petviashvili II equation.
    Sarbarish Chakravarty*, University of Colorado at Colorado Springs
    (1027-33-185)
  • 5:30 p.m.
    Crossing Probabilities in Percolation and Stochastic L{\"o}wner Evolution and Modular Forms.
    Peter Kleban*, University of Maine
    Don Zagier, Max-Planck Institut f{\"u}r Mathematik, Coll{\`e}ge de France
    (1027-82-111)
  • 6:00 p.m.
    Discussion
• Saturday April 21, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Representations of Algebras, II
  Room 210, Modern Languages
  Organizers:
  Frauke Maria Bleher, University of Iowa fbleher@math.uiowa.edu
  Birge K. Huisgen-Zimmermann, University of California Santa Barbara birge@math.ucsb.edu
  Dan Zacharia, Syracuse University zacharia@mailbox.syr.edu
  

  • 3:00 p.m.
    The combinatorics of quiver representations.
    Harm Derksen*, University of Michigan
    Jerzy Weyman, Northeastern University
    (1027-16-184)
  • 3:30 p.m.
    Counterexamples to Okounkov's log-concavity conjecture.
    Calin I Chindris*, University of Minnesota
    Harm Derksen, University of Michigan
    Jerzy Weyman, Northeastern University
    (1027-16-53)
  • 4:00 p.m.
    The French Connection.
    Roberto Mart\'{i}nez Villa, Instituto de Mathem\'{a}ticas, UNAM
    Alex Martsinkovsky*, Northeastern University
    (1027-16-149)
  • 4:30 p.m.
    Triangulated Surfaces and String Algebras.
    Thomas Br\"ustle*, Bishops University and Universite de Sherbrooke
    (1027-16-180)
  • 5:00 p.m.
    Stable equivalence of graded algebras.
    Alex S. Dugas*, UC Santa Barbara
    Roberto Martinez-Villa, UNAM
    (1027-16-186)
  • 5:30 p.m.
    Discussion.
• Saturday April 21, 2007, 3:00 p.m.-5:20 p.m.
  Special Session on Inverse Problems for Wave Propagation, II
  Room 137, Integrated Learning Center
  Organizers:
  Liliana Borcea, Rice University borcea@caam.rice.edu
  

  • 3:00 p.m.
    Can one make objects invisible?
    Gunther Uhlmann*, University of Washington
    Allan Greenleaf, University of Rochester
    Yaroslav Kurylev, Lougborough University
    Matti Lassas, Helsinki University of Technology
    (1027-35-93)
  • 4:00 p.m.
    Conductivity Imaging with a Single Measurement of Boundary and Interior Data.
    Alexandru Tamasan*, University of Central Florida
    Adrian Nachman, University of Toronto
    Alexander Timonov, University of South Carolina Upstate
    (1027-35-59)
  • 4:30 p.m.
    The inverse fluorescent source problem for optical molecular imaging of tissues.
    Arnold D Kim*, University of California, Merced
    (1027-78-65)
  • 5:00 p.m.
    Thermo/Photo/Opto-Acoustic Tomography and Relativistically Acausal Acoustic Absorption Models.
    Sarah K Patch*, UW-Milwaukee, Department of Physics
    (1027-44-99)
• Saturday April 21, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Mathematical Modeling in Biology and Medicine, II
  Room 140, Integrated Learning Center
  Organizers:
  Carlos Castillo-Chavez, Arizona State University chavez@math.asu.edu
  Yang Kuang, Arizona State University kuang@asu.edu
  Hal L. Smith, Arizona State University halsmith@asu.edu
  Horst R. Thieme, Arizona State University thieme@math.asu.edu
  

  • 3:00 p.m.
    Models of Hepatitis Delta Virus and its Drug Therapy.
    Jonathan Forde*, University of Utah
    (1027-92-214)
  • 3:30 p.m.
    Modeling Plague Dynamics in Natural Biological Systems.
    Colleen T Webb*, Colorado State University
    (1027-92-172)
  • 4:00 p.m.
    Existence of a Disease-Free Equilibrium in an SIS Epidemic Patch Model When the Rate of Susceptible Dispersal Approaches Zero.
    Linda J. S. Allen*, Texas Tech University
    Ben M. Bolker, University of Florida
    Yuan Lou, The Ohio State University
    Andrew L. Nevai, The Ohio State University
    (1027-92-39)
  • 4:30 p.m.
    Backward bifurcation in a discrete SIS model with vaccination.
    Sophia R.-J. Jang*, University of Louisiana at Lafayette
    (1027-92-170)
  • 5:00 p.m.
    Mathematical modeling of malaria infection: the impact of treating asymptotic infection.
    Xiaohong Wang*, Arizona State University
    Carlos Castillo-Chavez, Arizona State University
    Ananias Escalante, Arizona State University
    Priscilla Greenwood, Arizona State University
    (1027-92-211)
  • 5:30 p.m.
    A SEIRS model for influenza epidemic with antiviral agent treatment.
    Abdessamad Tridane*, Arizona State University
    Horst Thieme, Arizona State University
    Yang Kuang, Arizona State University
    (1027-92-106)
• Saturday April 21, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Automorphisms of Curves, II
  Room 413, Modern Languages
  Organizers:
  Aaron D. Wootton, University of Portland wootton@up.edu
  Anthony Weaver, Bronx Community College anthonyweaver@mac.com
  S. Allen Broughton, Rose-Hulman Institute of Technology allen.broughton@rose-hulman.edu
  

  • 3:00 p.m.
    Classifying Pairs of Fuchsian Groups of Finite Type.
    S. Allen Broughton*, Rose-Hulman Institute of Technology
    (1027-14-104)
  • 3:30 p.m.
    Triangle Fuchsian groups and surfaces with many automorphisms.
    Ernesto Girondo*, Departamento de Matematicas. Instituto de Matematicas y Fisica Fundamental-IMAFF. CSIC. Madrid (Spain)
    (1027-30-125)
  • 4:00 p.m.
    Vanishings of Theta on the Jacobian of Bring's Curve (Numerical Results).
    James S Wolper*, Idaho State University
    (1027-14-228)
  • 4:30 p.m.
    Invariant Spin Structures on Riemann Surfaces.
    Denis K. Sjerve*, University of British Columbia
    Sadok Kallel, Universite de Lille I
    (1027-14-74)
  • 5:00 p.m.
    On endomorphism algebras of hyperelliptic jacobians.
    Arsen Elkin*, Colorado State University
    Yuri Zarhin, Pennsylvania State University
    (1027-14-158)
  • 5:30 p.m.
    The relationship between p-ranks and automorphism groups.
    Darren B Glass*, Gettysburg College
    (1027-14-78)
• Saturday April 21, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Subjects in and Around Fluid Dynamics, II
  Room 141, Integrated Learning Center
  Organizers:
  Robert Owczarek, Los Alamos National Laboratory rmo@lanl.gov
  Mikhail Stepanov, University of Arizona stepanov@math.arizona.edu
  

  • 3:00 p.m.
    Dynamics of the vortex line in presence of another vortex.
    V E Zakharov*, Univeristy of Arizona
    (1027-76-242)
  • 4:00 p.m.
    Recent unique continuation results for the CH equation.
    G. Misiolek*, University of Notre Dame
    (1027-35-57)
  • 5:00 p.m.
    K-contact structures and energy minimization.
    Rafal Komendarczyk*, University of Pennsylvania
    (1027-76-81)
  • 5:30 p.m.
    New results in modeling of acoustic stimulation of oil recovery.
    Robert Michal Owczarek*, Los Alamos National Laboratory
    (1027-76-71)
• Saturday April 21, 2007, 3:00 p.m.-5:20 p.m.
  Special Session on Operator Algebras, II
  Room 411, Modern Languages
  Organizers:
  Steven P. Kaliszewski, Arizona State University kaliszewski@asu.edu
  Jack Spielberg, Arizona State University Jack.Spielberg@asu.edu
  John C. Quigg, Arizona State University quigg@asu.edu
  

  • 3:00 p.m.
    Asymptotic Kasparov cycles and extensions.
    Constantin Dorin Dumitrascu*, University of Arizona, Tucson, AZ
    Radu Popescu, Instituto Superior Técnico, Lisbon, Portugal
    (1027-19-223)
  • 3:30 p.m.
    Automorphisms of non-selfadjoint operator algebras of directed graphs.
    Benton L. Duncan*, North Dakota State University
    (1027-46-21)
  • 4:00 p.m.
    Crossed Products by Free Abelian Groups as Higher-rank Graph Algebras.
    Cynthia Farthing*, University of Nebraska-Lincoln
    David Pask, University of Wollongong
    Aidan Sims, University of Wollongong
    (1027-46-212)
  • 4:30 p.m.
    The noncommutative Choquet boundary.
    William Arveson*, University of California, Berkeley
    (1027-47-60)
  • 5:00 p.m.
    Generalized-low pass filters and the resulting isometries.
    Judith A. Packer*, Department of Mathematics, University of Colorado, Boulder
    (1027-46-231)
• Saturday April 21, 2007, 3:00 p.m.-5:40 p.m.
  Special Session on Moduli Spaces and Invariant Theory, II
  Room 202, Modern Languages
  Organizers:
  Philip Foth, University of Arizona foth@math.arizona.edu
  Yi Hu, University of Arizona yhu@math.arizona.edu
  

  • 3:00 p.m.
    Noncommutative moduli spaces.
    Paul Hacking*, University of Washington
    (1027-14-115)
  • 4:00 p.m.
    Variation of hyperplane sections.
    Michael A van Opstall*, University of Utah
    (1027-14-32)
  • 5:00 p.m.
    Are Artin stacks locally quotient stacks?
    Jarod D. Alper*, Stanford University
    (1027-14-136)
• Saturday April 21, 2007, 3:00 p.m.-5:40 p.m.
  Special Session on Spectral Analysis on Singular and Noncompact Manifolds, II
  Room 125, Integrated Learning Center
  Organizers:
  Juan Bautista Gil, Pennyslvania State University jgil@psu.edu
  Thomas Krainer, Pennsylvania State University krainer@psu.edu
  

  • 3:00 p.m.
    The $b$-Dolbeault complex.
    Gerardo A. Mendoza*, Temple University
    (1027-32-150)
  • 4:00 p.m.
    Spectral Geometry and Asymptotically Conic Convergence.
    J M Rowlett*, University of California at Santa Barbara
    (1027-58-61)
  • 5:00 p.m.
    Elliptic operators on quasi-asymptotically conic spaces.
    Rafe Mazzeo*, Stanford University
    Anda Degeratu, Max Planck Institut for Gravitationsphysik
    (1027-58-208)
• Saturday April 21, 2007, 3:00 p.m.-5:20 p.m.
  Special Session on Graph Theory and Combinatorics, II
  Room 304, Modern Languages
  Organizers:
  Sebastian M. Cioaba, University of California at San Diego scioaba@math.ucsd.edu
  Joshua Cooper, University of South Carolina cooper@math.sc.edu
  

  • 3:00 p.m.
    Erd{\H o}s-Ko-Rado Theorems for Permutations and Set Partitions.
    Cheng Yeaw Ku*, California Institute of Technology
    David Renshaw, California Institute of Technology
    (1027-05-121)
  • 3:30 p.m.
    Induced universal graphs for graphs with bounded maximum degree.
    Steve Butler*, University of California, San Diego
    (1027-05-25)
  • 4:00 p.m.
    Upper bounds on the independence number for weighted matrices of graphs.
    Randall J Elzinga*, Queen's University at Kingston
    (1027-05-235)
  • 4:30 p.m.
    Monomial Graphs of Girth at Least Eight.
    Vasyl Dmytrenko, Temple University
    Felix Lazebnik, University of Delaware
    Jason Williford*, Worcester Polytechnic Institute
    (1027-05-217)
  • 5:00 p.m.
    Equitable Coloring.
    H. A. Kierstead*, Arizona State University
    A. V. Kostochka, University of Illinois, Urbana
    (1027-05-62)
• Saturday April 21, 2007, 3:00 p.m.-6:25 p.m.
  Session on Contributed Paper Session
  Room 312, Modern Languages
  

  • 3:00 p.m.
    Hessians, Warped Product and Eigenvalues.
    Nelson Castaneda*, Central Connecticut State University
    (1027-58-14)
  • 3:15 p.m.
    Stability of Krylov Subspace Spectral Methods.
    James V Lambers*, Stanford University
    (1027-65-110)
  • 3:30 p.m.
    Solving the inverse problem for a wave equation.
    Rod A Freed*, California State University at Dominguez Hills
    (1027-35-10)
  • 3:45 p.m.
    Existence and uniqueness of solutions to equations modeling compressible fluid flow with capillary stress effects.
    Diane L. Denny*, Texas A&M University - Corpus Christi
    (1027-35-181)
  • 4:00 p.m.
    The Influence of Unstable Modalities on Electrical Engineering.
    Christopher James Kurtz*, Virtual University
    (1027-94-06)
  • 4:15 p.m.
    Stability of Solutions to a Reaction Diffusion System Based on Chemical Reaction Kinetics.
    Jisun Lim*, Department of Applied Mathematics, University of Colorado at Boulder
    (1027-35-18)
  • 4:30 p.m.
    Dynamics of Stoichiometric Bacteria-algae Interaction in Epilimnion.
    Hao Wang*, Arizona State University
    Hal Smith, Arizona State University
    Yang Kuang, Arizona State University
    James J Elser, Arizona State University
    (1027-92-05)
  • 4:45 p.m.
    Probability of hitting treatment targets.
    Rod Freed*, California State University Dominguez Hills
    (1027-60-11)
  • 5:00 p.m.
    Quantum Computing and Quantum Number Theory.
    James Kuodo Huang*, California Information Technology
    (1027-68-23)
  • 5:15 p.m.
    On Uniserial Modules in the Auslander-Reiten Quiver.
    Ahmad Mojiri*, Texas A&M University - Texarkana
    Axel Boldt, Metropolitan State University
    (1027-16-95)
  • 5:30 p.m.
    Semidefinite Diagonal Directions Algorithm for Detecting Necessary Linear Matrix Inequality Constraints in Semidefinite Programming.
    Shafiu Jibrin*, Northern Arizona University
    Jackie Van Ryzin, St. Norbert College, De Pere, WI
    (1027-90-22)
  • 5:45 p.m.
    On Groups with Excessive Davenport Constant.
    Bryson W Finklea, St. John's College
    Terri Moore, University of Nebraska
    Vadim Ponomarenko*, San Diego State University
    Zachary Turner, University of Houston
    (1027-20-175)
  • 6:00 p.m.
    Numerical Range of Companion Matrices.
    William Calbeck*, LSU-Alexandria
    (1027-15-177)
  • 6:15 p.m.
    Method of Infinite Ascend applied on A4 + nB4 = C2.
    Susil Kumar Jena*, KIIT, University, Bhubaneswar-751024, Orissa, India
    (1027-11-216)

Sunday April 22, 2007

• Sunday April 22, 2007, 8:00 a.m.-12:00 p.m.
  Meeting Registration
  Lobby, Integrated Learning Center
• Sunday April 22, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Number Theory in the Southwest, III
  Room 310, Modern Languages
  Organizers:
  Dinesh S. Thakur, University of Arizona thakur@math.arizona.edu
  Douglas L. Ulmer, University of Arizona ulmer@math.arizona.edu
  

  • 8:00 a.m.
    Totally Degenerate Reduction and the Conjectures of Hodge and Tate.
    Wayne M. Raskind*, University of Southern California
    (1027-11-141)
  • 8:30 a.m.
    Orbits of rational points on certain $K3$ surfaces and the ample cone.
    Arthur Baragar*, University of Nevada Las Vegas
    (1027-11-80)
  • 9:00 a.m.
    K-theory of log-schemes.
    Wieslawa Niziol*, University of Utah
    (1027-11-237)
  • 9:30 a.m.
    Descent on the Congruent Number Elliptic Curves.
    Nick Rogers*, University of Arizona
    (1027-11-222)
  • 10:00 a.m.
    Lifting Puzzles for Siegel Modular Forms.
    Cris Poor, Fordham University
    Nathan C. Ryan*, UCLA
    David S. Yuen, Lake Forest College
    (1027-11-86)
  • 10:30 a.m.
    Periods of Drinfeld modules and difference Galois groups.
    Chieh-Yu Chang, National Tsing-Hua University
    Matthew Papanikolas*, Texas A&M University
    (1027-11-155)
• Sunday April 22, 2007, 8:00 a.m.-10:40 a.m.
  Special Session on Partial Differential Equations and Geometric Analysis, III
  Room 119, Integrated Learning Center
  Organizers:
  Sunhi Choi, University of Arizona schoi@math.arizona.edu
  Lennie Friedlander, University of Arizona friedlan@math.arizona.edu
  David Alan Glickenstein, University of Arizona glickenstein@math.arizona.edu
  

  • 8:00 a.m.
    Discussion
  • 9:00 a.m.
    An eigenvalue estimate and a Brownian pursuit capture problem.
    Andrejs E Treibergs*, University of Utah
    (1027-53-13)
  • 10:00 a.m.
    Heat Kernel on Homogeneous Bundles over Symmetric Spaces.
    Ivan G Avramidi*, New Mexico Institute of Mining and Technology
    (1027-58-173)
• Sunday April 22, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Special Functions and Orthogonal Polynomials, III
  Room 130, Integrated Learning Center
  Organizers:
  Diego Dominici, State University of New York at New Paltz dominicd@newpaltz.edu
  Robert S. Maier, University of Arizona rsm@math.arizona.edu
  

  • 8:00 a.m.
    The 192 Solutions of the Heun Equation.
    Robert S. Maier*, University of Arizona
    (1027-33-233)
  • 8:30 a.m.
    Fractional Integration and Fractional Differentiation for $d$-dimensional Jacobi Expansions.
    Cristina Balderrama, Universidad Central de Venezuela
    Wilfredo O Urbina*, University of New Mexico & Universidad Central de Venezuela
    (1027-33-134)
  • 9:00 a.m.
    Fractional Derivatives for Products of Airy Transforms.
    Vladimir V Varlamov*, University of Texas - Pan American
    (1027-33-33)
  • 9:30 a.m.
    The Asymptotic Zero Distribution for Partition Polynomials.
    Robert P. Boyer*, Department of Mathematics; Drexel University
    William M. Y. Goh, Department of Mathematics; Drexel University
    (1027-33-09)
  • 10:00 a.m.
    Asymptotics of zeros of Hermite functions.
    Martin E. Muldoon*, York Universlty
    (1027-33-41)
  • 10:30 a.m.
    Asympototics of the Painlev\'e Equations.
    Peter A Clarkson*, University of Kent, England
    (1027-33-50)
• Sunday April 22, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Representations of Algebras, III
  Room 210, Modern Languages
  Organizers:
  Frauke Maria Bleher, University of Iowa fbleher@math.uiowa.edu
  Birge K. Huisgen-Zimmermann, University of California Santa Barbara birge@math.ucsb.edu
  Dan Zacharia, Syracuse University zacharia@mailbox.syr.edu
  

  • 8:00 a.m.
    Coxeter transformations: from Lie algebras to singularity theory.
    Jose Antonio De la Pena*, UNAM, Mexico
    (1027-16-239)
  • 8:30 a.m.
    Gabriel's Theorem on Quivers, Bernstein-Gelfand-Ponomarev's Reflection Functors, and Reduced Words in the Weyl Group.
    Mark Kleiner*, Syracuse University
    (1027-16-145)
  • 9:00 a.m.
    Complexes of Monomial Algebras.
    Raymundo Bautista*, Instituto de Matematicas UNAM (Morelia)
    (1027-16-153)
  • 9:30 a.m.
    Clusters and seeds in acyclic cluster algebras.
    Aslak Bakke Buan, Institutt for matematiske fag, Norges teknisk-naturvitenskapelige universitet
    Robert J. Marsh, Department of Mathematics, University of Leicester
    Idun Reiten, Institutt for matematiske fag, Norges teknisk-naturvitenskapelige universitet
    Gordana Glisa Todorov*, Northeastern University
    (1027-16-146)
  • 10:00 a.m.
    Quasi-Morphic Rings.
    Victor P. Camillo*, University of Iowa
    (1027-16-75)
  • 10:30 a.m.
    On commutative clean rings.
    W. D. Burgess*, University of Ottawa
    (1027-16-92)
• Sunday April 22, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Mathematical Modeling in Biology and Medicine, III
  Room 140, Integrated Learning Center
  Organizers:
  Carlos Castillo-Chavez, Arizona State University chavez@math.asu.edu
  Yang Kuang, Arizona State University kuang@asu.edu
  Hal L. Smith, Arizona State University halsmith@asu.edu
  Horst R. Thieme, Arizona State University thieme@math.asu.edu
  

  • 8:00 a.m.
    Modelling the stability and robustness of lysogen in the bacteriophage $\lambda$.
    Tomas Gedeon*, Montana State University
    Kate Rardin, Montana State University
    (1027-92-66)
  • 8:30 a.m.
    The role of resource types in the control of chemostats using feedback linearization.
    Mary M Ballyk*, New Mexico State University
    Ernest Barany, New Mexico State University
    (1027-92-174)
  • 9:00 a.m.
    Some Producer-Consumer Population Models with Stoichiometric Constraints.
    Bruce B Peckham*, Department of Mathematics and Statistics, University of Minnesota Duluth
    Laura J Zimmermann, Ameriprise Financial, Mayfield Heights, OH
    John Pastor, Department of Biology, University of Minnesota Duluth
    Harlan W Stech, Department of Mathematics and Statistics, University of MInnesota Duluth
    (1027-92-137)
  • 9:30 a.m.
    Continuous Versus Seasonal Reproduction in Discrete Stage-Structured Population Models.
    Azmy S. Ackleh*, University of Louisiana at Lafayette
    Youssef M. Dib, University of Louisiana at Lafayette
    Sophia R.-J. Jang, University of Louisiana at Lafayette
    (1027-92-176)
  • 10:00 a.m.
    A discrete model for extinction and sustainability.
    Saber N Elaydi*, Trinity University
    (1027-39-229)
  • 10:30 a.m.
    Heteroclinic Cycles in the Chemostat Models and the Winnerless Competition Principle.
    Sze-Bi Hsu, National Tsing Hua University, Taiwan
    Lih-Ing W Roeger*, Texas Tech University
    (1027-92-28)
• Sunday April 22, 2007, 8:00 a.m.-10:50 a.m.
  Special Session on Automorphisms of Curves, III
  Room 413, Modern Languages
  Organizers:
  Aaron D. Wootton, University of Portland wootton@up.edu
  Anthony Weaver, Bronx Community College anthonyweaver@mac.com
  S. Allen Broughton, Rose-Hulman Institute of Technology allen.broughton@rose-hulman.edu
  

  • 8:00 a.m.
    Combinatorial group-theoretic methods in the study of automorphisms of maps and surfaces.
    Marston D E Conder*, University of Auckland
    (1027-20-206)
  • 9:00 a.m.
    Gap-filling for the Symmetric Genus of a Group.
    Thomas W. Tucker*, Colgate University, Hamilton NY USA
    Marston Conder, University of Auckland, Auckland, New Zealand
    (1027-20-226)
  • 9:30 a.m.
    Strong Symmetric Genus and Generalized Symmetric Groups of Type $G(n,3)$.
    Michael A Jackson*, King College
    (1027-20-101)
  • 10:00 a.m.
    The symmetric crosscap number of the groups $C_{m}\times D_{n}$.
    Jose Javier Etayo*, Dept. de Algebra, Universidad Complutense
    Ernesto Martinez, Dept. Matematicas Fundamentales, UNED
    (1027-20-98)
  • 10:30 a.m.
    The largest non-genus of ${\Bbb Z}_{pq}$ and the Frobenius problem.
    Cormac O'Sullivan, Bronx Community College, City University of New York
    Anthony Weaver*, Bronx Community College, City University of New York
    (1027-11-38)
• Sunday April 22, 2007, 8:00 a.m.-10:40 a.m.
  Special Session on Subjects in and Around Fluid Dynamics, III
  Room 141, Integrated Learning Center
  Organizers:
  Robert Owczarek, Los Alamos National Laboratory rmo@lanl.gov
  Mikhail Stepanov, University of Arizona stepanov@math.arizona.edu
  

  • 8:00 a.m.
    Bistability of optical bisolitons in optical fibers with dispersion management.
    Ildar Gabitov*, University of Arizona
    Robert Indik, University of Arizona
    Pavel Lushnikov, University of New Mexico
    Linn Mollenauer, University of Arizona
    Maxim Shkarayev, University of Arizona
    Mikhail Stepanov, University of Arizona
    (1027-78-234)
  • 9:00 a.m.
    Loss Compensation in Nano-Structured Materials.
    Bridget R Kennedy*, Department of Mathematics, University of Arizona
    Ildar Gabitov, Department of Mathematics, University of Arizona
    Maxim Shkarayev, Department of Mathematics, University of Arizona
    (1027-78-236)
  • 10:00 a.m.
    Collective stimulated Brillouin backscater.
    Pavel M Lushnikov*, University of New Mexico
    (1027-78-73)
• Sunday April 22, 2007, 8:00 a.m.-10:40 a.m.
  Special Session on Spectral Analysis on Singular and Noncompact Manifolds, III
  Room 125, Integrated Learning Center
  Organizers:
  Juan Bautista Gil, Pennyslvania State University jgil@psu.edu
  Thomas Krainer, Pennsylvania State University krainer@psu.edu
  

  • 8:00 a.m.
    Derivatives of biharmonic functions near nonsmooth boundary.
    Vladimir Maz'ya*, Department of Mathematics, Ohio State University, Department of Mathematical Sciences, University of Liverpool, UK
    (1027-35-120)
  • 9:00 a.m.
    Spectral simplicity of the Laplacian on generic polygons.
    Chris M Judge*, Indiana University, Bloomington
    Luc Hillairet, Universite Nantes
    (1027-58-42)
  • 10:00 a.m.
    Nodal Lines of Convex Ergodic Billiards.
    John A Toth*, McGill University
    (1027-35-112)
• Sunday April 22, 2007, 8:00 a.m.-12:00 p.m.
  Exhibit and Book Sale
  Lobby, Integrated Learning Center
• Sunday April 22, 2007, 8:30 a.m.-10:20 a.m.
  Special Session on Inverse Problems for Wave Propagation, III
  Room 137, Integrated Learning Center
  Organizers:
  Liliana Borcea, Rice University borcea@caam.rice.edu
  

  • 8:30 a.m.
    Time Reversal in Randomly Layered Media.
    Jean-Pierre Fouque*, University of California Santa Barbara
    (1027-60-64)
  • 9:30 a.m.
    Optimal illumination and waveform design for imaging in random media.
    Chrysoula Tsogka*, Dept. of Applied Mathematics, University of Crete
    Liliana Borcea, Computational and Applied Mathematics, Rice University
    George Papanicolaou, Department of Mathematics, Stanford University
    (1027-65-97)
  • 10:00 a.m.
    Selective illumination of extended targets in array imaging.
    Fernando Guevara Vasquez*, Stanford University
    Liliana Borcea, Rice University
    George Papanicolaou, Stanford University
    (1027-35-194)
• Sunday April 22, 2007, 8:30 a.m.-10:50 a.m.
  Special Session on Graph Theory and Combinatorics, III
  Room 304, Modern Languages
  Organizers:
  Sebastian M. Cioaba, University of California at San Diego scioaba@math.ucsd.edu
  Joshua Cooper, University of South Carolina cooper@math.sc.edu
  

  • 8:30 a.m.
    Constrained coloring problems for planar graphs.
    Andr\'e K\"undgen*, Cal State San Marcos
    (1027-05-202)
  • 9:00 a.m.
    The spectral gap of a random subgraph of a graph.
    Fan Chung, UCSD
    Paul K Horn*, UCSD
    (1027-05-204)
  • 9:30 a.m.
    Distributed algorithms and graph theory.
    Andrzej Czygrinow*, Department of Mathematics and Statistics, Arizona State University
    (1027-05-169)
  • 10:00 a.m.
    Spectral supersaturation in graphs.
    Vladimir Nikiforov*, University of Memphis, Tennessee, USA
    (1027-05-198)
  • 10:30 a.m.
    Survey of Bulgarian Solitaire.
    Brian Hopkins*, Saint Peter's College
    (1027-05-16)
• Sunday April 22, 2007, 9:00 a.m.-10:50 a.m.
  Special Session on Advances in Spectral Theory of Operators, II
  Room 133, Integrated Learning Center
  Organizers:
  Roger Roybal, California State University, Channel Islands roger.roybal@csuci.edu
  Michael D. Wills, Weber State University mwills@weber.edu
  

  • 9:00 a.m.
    Spectral pictures of $2$-variable weighted shifts.
    Ra\'ul E Curto*, University of Iowa
    (1027-47-88)
  • 9:30 a.m.
    Spectra of some Toeplitz operators with almost periodic matrix symbols.
    Ilya M Spitkovsky*, College of William and Mary
    (1027-47-201)
  • 10:00 a.m.
    Lagrange-Sobolev Adjoints and Lagrange-Sobolev Symmetry of Ordinary Differential Expressions.
    Lance Lee Littlejohn*, Department of Mathematics, Baylor University
    Andrea Bruder, Department of Mathematics, Baylor University
    Davut Tuncer, Department of Mathematics, Baylor University
    (1027-34-68)
  • 10:30 a.m.
    Discussion
• Sunday April 22, 2007, 9:00 a.m.-10:45 a.m.
  Special Session on Algebraic Combinatorics, III
  Room 303, Modern Languages
  Organizers:
  Helene Barcelo, Arizona State University barcelo@asu.edu
  Susanna Fishel, Arizona State University fishel@math.la.asu.edu
  

  • 9:00 a.m.
    Picturing the compositions series of rational Cherednik algebra modules for the groups $G(r,p,n)$.
    Stephen P. Griffeth*, University of Minnesota
    (1027-05-195)
  • 9:30 a.m.
    A Schur expansion for Macdonald polynomials.
    Sami Assaf*, University of California, Berkeley
    (1027-05-102)
  • 10:00 a.m.
    t-analogues of principally specialized Schur functions.
    Dennis Stanton*, School of Mathematics, University of Minnesota
    (1027-05-199)
• Sunday April 22, 2007, 9:00 a.m.-10:50 a.m.
  Special Session on Operator Algebras, III
  Room 411, Modern Languages
  Organizers:
  Steven P. Kaliszewski, Arizona State University kaliszewski@asu.edu
  Jack Spielberg, Arizona State University Jack.Spielberg@asu.edu
  John C. Quigg, Arizona State University quigg@asu.edu
  

  • 9:00 a.m.
    Discussion
  • 10:00 a.m.
    $C^*$-algebras and self-similar groups.
    Volodymyr Nekrashevych*, Texas A&M University, College Station, TX
    (1027-46-70)
  • 10:30 a.m.
    Noncommutative T-duality and Pontryagin duality for groupoids.
    Calder Daenzer*, University of Pennsylvania
    (1027-19-49)
• Sunday April 22, 2007, 9:00 a.m.-10:40 a.m.
  Special Session on Moduli Spaces and Invariant Theory, III
  Room 202, Modern Languages
  Organizers:
  Philip Foth, University of Arizona foth@math.arizona.edu
  Yi Hu, University of Arizona yhu@math.arizona.edu
  

  • 9:00 a.m.
    Boundaries of the Kahler Cone of Calabi-Yau manifolds.
    Andrey Todorov*, UC Santa Cruz
    (1027-14-178)
  • 10:00 a.m.
    The level-rank duality for non-abelian theta functions.
    Alina Marian, Yale University
    Dragos Oprea*, Stanford University
    (1027-14-17)
• Sunday April 22, 2007, 9:30 a.m.-10:50 a.m.
  Special Session on New Developments and Directions in Random Matrix Theory, III
  Room 314, Modern Languages
  Organizers:
  Peter David Miller, University of Michigan millerpd@umich.edu
  Estelle Basor, California Polytechnic State University ebasor@calpoly.edu,
  

  • 9:30 a.m.
    Beta ensembles: from old results (semicircle laws) to new (stochastic operators).
    Ioana Dumitriu*, University of Washington, Seattle
    (1027-60-182)
  • 10:00 a.m.
    Beta Tracy-Widom laws, random Schroedinger, and diffusion.
    Jose Ramirez, Universidad de Costa Rica
    Brian Rider*, University of Colorado at Boulder
    Balint Virag, University of Toronto
    (1027-60-45)
  • 10:30 a.m.
    New Results on the Symmetric Polynuclear Growth Model.
    Toufic Suidan*, University of California, Santa Cruz
    (1027-60-220)
• Sunday April 22, 2007, 11:00 a.m.-11:50 a.m.
  Invited Address
  Matrix Population Models and Semelparity.
  Room 155, Integrated Learning Center
  J M Cushing*, Department of Mathematics, Interdisciplinary Program in Applied Mathematics, University of Arizona
  (1027-92-02)
• Sunday April 22, 2007, 3:00 p.m.-4:50 p.m.
  Special Session on Number Theory in the Southwest, IV
  Room 310, Modern Languages
  Organizers:
  Dinesh S. Thakur, University of Arizona thakur@math.arizona.edu
  Douglas L. Ulmer, University of Arizona ulmer@math.arizona.edu
  

  • 3:00 p.m.
    On special values of $p$-adic L-functions.
    Adebisi Agboola*, UC Santa Barbara
    (1027-11-166)
  • 3:30 p.m.
    Ranks of abelian varieties over function fields.
    Lisa Berger*, University of Arizona
    (1027-11-193)
  • 4:00 p.m.
    Irreducible polynomials over number fields.
    S Jasbir Chahal*, Brigham Young University
    (1027-11-119)
  • 4:30 p.m.
    ABC implies the Radicalized Vojta Height Inequality for curves.
    Machiel van Frankenhuijsen*, Utah Valley State
    (1027-11-76)
• Sunday April 22, 2007, 3:00 p.m.-4:50 p.m.
  Special Session on Algebraic Combinatorics, IV
  Room 303, Modern Languages
  Organizers:
  Helene Barcelo, Arizona State University barcelo@asu.edu
  Susanna Fishel, Arizona State University fishel@math.la.asu.edu
  

  • 3:00 p.m.
    Physical Combinatorics.
    Anne Schilling*, UC Davis
    (1027-05-36)
  • 4:00 p.m.
    Representations arising from the Gosset graph.
    R. M. Green*, University of Colorado at Boulder
    (1027-05-108)
  • 4:30 p.m.
    Tensor factorization and Spin construction for Kac-Moody algebras.
    Rajeev Walia*, Michigan State University
    (1027-05-207)
• Sunday April 22, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Special Functions and Orthogonal Polynomials, IV
  Room 130, Integrated Learning Center
  Organizers:
  Diego Dominici, State University of New York at New Paltz dominicd@newpaltz.edu
  Robert S. Maier, University of Arizona rsm@math.arizona.edu
  

  • 3:00 p.m.
    The theta-Laguerre calculus formulation of the Li/Keiper constants.
    Mark W Coffey*, Colorado School of Mines
    (1027-33-54)
  • 3:30 p.m.
    Nonlinear Integral-Equation Formulation of Orthogonal Polynomials.
    Carl M. Bender*, Washington University in St. Louis and CNLS, Los Alamos National Laboratory
    (1027-33-109)
  • 4:00 p.m.
    Orthogonal Polynomials and Left-definite Spectral Theory.
    Lance L Littlejohn*, Department of Mathematics, Baylor University
    (1027-33-67)
  • 4:30 p.m.
    Some examples of orthogonal matrix polynomials satisfying odd order differential equations.
    Manuel D. de la Iglesia*, Universidad de Sevilla
    Antonio J. Duran, Universidad de Sevilla
    (1027-42-56)
  • 5:00 p.m.
    Multivariable polynomials and Lie algebras.
    Alexander V Turbiner*, Instituto de Ciencias Nucleares, UNAM
    (1027-33-19)
  • 5:30 p.m.
    Multiplicative Renormalization Method for Orthogonal Polynomials.
    Suat Namli*, Louisiana State University
    (1027-33-163)
• Sunday April 22, 2007, 3:00 p.m.-4:20 p.m.
  Special Session on Representations of Algebras, IV
  Room 210, Modern Languages
  Organizers:
  Frauke Maria Bleher, University of Iowa fbleher@math.uiowa.edu
  Birge K. Huisgen-Zimmermann, University of California Santa Barbara birge@math.ucsb.edu
  Dan Zacharia, Syracuse University zacharia@mailbox.syr.edu
  

  • 3:00 p.m.
    Quasitilted Rings.
    Kent R Fuller*, University of Iowa
    (1027-16-114)
  • 3:30 p.m.
    Discussion
  • 4:00 p.m.
    Discussion
• Sunday April 22, 2007, 3:00 p.m.-4:50 p.m.
  Special Session on Inverse Problems for Wave Propagation, IV
  Room 137, Integrated Learning Center
  Organizers:
  Liliana Borcea, Rice University borcea@caam.rice.edu
  

  • 3:00 p.m.
    Inclusion Detection in Laminar Media.
    Knut Solna*, UC Irvine
    (1027-37-87)
  • 4:00 p.m.
    Reverse Time Migration Using The Adjoint-State Method.
    Eric A Dussaud*, Total E&P USA
    William W. Symes, Rice University, Comp. and Applied Mathematics
    (1027-86-128)
  • 4:30 p.m.
    Applying Time-Reversal to Image Vertical Geologic Faults.
    Joyce R. McLaughlin, Rensselaer Polytechnic Institute
    Steven W. Roecker, Rensselaer Polytechnic Institute
    Jeong-Rock Yoon, Clemson University
    Polina Zheglova*, Rensselaer Polytechnic Institute
    (1027-86-126)
• Sunday April 22, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Mathematical Modeling in Biology and Medicine, IV
  Room 140, Integrated Learning Center
  Organizers:
  Carlos Castillo-Chavez, Arizona State University chavez@math.asu.edu
  Yang Kuang, Arizona State University kuang@asu.edu
  Hal L. Smith, Arizona State University halsmith@asu.edu
  Horst R. Thieme, Arizona State University thieme@math.asu.edu
  

  • 3:00 p.m.
    Enhanced modeling of the glucose-insulin system and its application in insulin therapies.
    Haiyan Wang*, Arizona State University
    (1027-92-91)
  • 3:30 p.m.
    Bimodal Epidemic Size Distributions for Near-Critical SIR with Vaccination.
    Luis F. Gordillo*, Mathematical and Theoretical Biology Institute, Department of Mathematics, Arizona State University
    Stephen Marion, Department of Health Care and Epidemiology, University of British Columbia
    Anders Martin-Lof, Department of Mathematics, Stockholm University
    Priscilla Greenwood, Mathematical and Theoretical Biology Institute, Department of Mathematics, Arizona State University
    (1027-92-07)
  • 4:00 p.m.
    Simple models for horizontal and vertical transmission.
    Thanate Dhirasakdanon*, Department of Mathematics and Statistics, Arizona State University
    Stan H. Faeth, School of Life Sciences, Arizona State University
    Karl P. Hadeler, Department of Mathematics and Statistics, Arizona State University
    Horst R. Thieme, Department of Mathematics and Statistics, Arizona State University
    (1027-92-205)
  • 4:30 p.m.
    Microbial Quiescence, A Survival Strategy In Environmental Stress.
    Tufail M Malik*, Arizona State University
    Hal Smith, Arizona State University
    (1027-37-192)
  • 5:00 p.m.
    Demographic Fluctuations in Structured Populations.
    Joseph C Watkins*, Department of Mathematics, University of Arizona
    (1027-92-127)
  • 5:30 p.m.
    Dynamics of Stoichiometric Bacteria-Algae Interactions in the Epilimnion.
    Hao Wang*, Arizona State University
    Hal L Smith, Arizona State University
    Yang Kuang, Arizona State University
    James J Elser, Arizona State University
    (1027-92-103)
• Sunday April 22, 2007, 3:00 p.m.-6:00 p.m.
  Special Session on Automorphisms of Curves, IV
  Room 413, Modern Languages
  Organizers:
  Aaron D. Wootton, University of Portland wootton@up.edu
  Anthony Weaver, Bronx Community College anthonyweaver@mac.com
  S. Allen Broughton, Rose-Hulman Institute of Technology allen.broughton@rose-hulman.edu
  

  • 3:00 p.m.
    Finite earthquakes and the associahedron.
    Frederick P. Gardiner*, Brooklyn College, CUNY, Brooklyn, New York
    Jun Hu, Brooklyn College, CUNY, NY
    (1027-30-27)
  • 3:30 p.m.
    Some metric properties of the Teichm\"uller space of a Riemann surface rel a closed subset.
    Sudeb Mitra*, Queens College of the City University of New York
    (1027-32-168)
  • 4:00 p.m.
    Discussion
• Sunday April 22, 2007, 3:00 p.m.-5:50 p.m.
  Special Session on Subjects in and Around Fluid Dynamics, IV
  Room 141, Integrated Learning Center
  Organizers:
  Robert Owczarek, Los Alamos National Laboratory rmo@lanl.gov
  Mikhail Stepanov, University of Arizona stepanov@math.arizona.edu
  

  • 3:00 p.m.
    Free-surface hydrodynamics in conformal variables.
    V E Zakharov*, University of Arizona
    (1027-76-196)
  • 4:00 p.m.
    Irreversibility and chaos in shear flow carrying particles.
    Alan L. Graham, Los Alamos National Laboratory
    Marc Ingber, The University of New Mexico
    Marina Popova, The University of New Mexico
    Peter Vorobieff*, The University of New Mexico
    (1027-76-227)
  • 5:00 p.m.
    Meandering Streams.
    Keith Mertens*, Colorado State University
    Vakhtang Putkaradze, Colorado State University
    Peter Vorobieff, University of New Mexico
    Bjorn Birnir, University of California Santa Barbra
    (1027-97-142)
  • 5:30 p.m.
    Metal Melting After Explosion- the first 30 Microsecunds.
    Hanna E. Makaruk*, Los Alamos National Laboratory
    (1027-76-72)
• Sunday April 22, 2007, 3:00 p.m.-5:40 p.m.
  Special Session on Moduli Spaces and Invariant Theory, IV
  Room 202, Modern Languages
  Organizers:
  Philip Foth, University of Arizona foth@math.arizona.edu
  Yi Hu, University of Arizona yhu@math.arizona.edu
  

  • 3:00 p.m.
    Global quotient structure of moduli of orbifold stable maps.
    Hsian-Hua Tseng*, Department of Mathematics, University of British Columbia
    (1027-14-77)
  • 4:00 p.m.
    Toric schemes over a discrete valuation ring and applications to compactification of very affine varieties.
    Zhenhua Qu*, University of Texas - Austin
    (1027-14-171)
  • 5:00 p.m.
    The infinitely near Borel-fixed points on the Hilbert scheme.
    Morgan P. Sherman*, California State University, Channel Islands
    (1027-14-132)
• Sunday April 22, 2007, 3:00 p.m.-5:40 p.m.
  Special Session on Spectral Analysis on Singular and Noncompact Manifolds, IV
  Room 125, Integrated Learning Center
  Organizers:
  Juan Bautista Gil, Pennyslvania State University jgil@psu.edu
  Thomas Krainer, Pennsylvania State University krainer@psu.edu
  

  • 3:00 p.m.
    Functional determinants for separable partial differential operators.
    Klaus Kirsten*, Baylor University
    (1027-58-34)
  • 4:00 p.m.
    The residue determinant from a topological point of view.
    Frederic Rochon*, Stony Brook University
    (1027-58-116)
  • 5:00 p.m.
    The eta invariant for quantum graphs.
    Paul Loya, SUNY Binghamton
    Patrick McDonald*, New College of Florida
    (1027-58-210)

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