
AMS Sectional Meeting Full Program
Current as of Saturday, March 10, 2007 00:26:22
Program 
Deadlines 
Registration/Housing/Etc. 
Special Event or Lecture 
Inquiries: meet@ams.org
2007 Spring Southeastern Section Meeting
Davidson, NC, March 34, 2007 (Saturday  Sunday)
Meeting #1024
Associate secretaries: Matthew Miller, AMS miller@math.sc.edu
Saturday March 3, 2007

Saturday March 3, 2007, 7:30 a.m.4:00 p.m.
Meeting Registration
Gallery, Chambers Building

Saturday March 3, 2007, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Gallery, Chambers Building

Saturday March 3, 2007, 8:00 a.m.10:50 a.m.
Special Session on Dynamical Systems, I
Room 3187, Chambers Building Organizers: Emily B. Gamber, Santa Fe Institute
Donna K. Molinek, Davidson College domolinek@davidson.edu
James S. Wiseman, Agnes Scott College

8:00 a.m.
Subclasses of Limited Scope Adic Transformations.
Sarah Bailey Frick*, The Ohio State University
Karl Petersen, The University of North Carolina
(102437193)

8:30 a.m.
Modifying a branched surface to carry a foliation.
Sandra L Shields*, College of Charleston
(102454144)

9:00 a.m.
Itineraries of rigid rotations.
David S. Richeson*, Dickinson College
Jim Wiseman, Agnes Scott College
Paul Winkler, Dickinson College
(10243751)

9:30 a.m.
Dynamical properties of stochastic cellular automata.
Jane Hawkins*, University of North Carolina at Chapel Hill
Donna Molinek, Davidson College and University of N. Carolina at Chapel Hill
(102437102)

10:00 a.m.
Dynamics of the Nash Map.
R Becker, Indiana University
S Chakrabarti, Indiana University Purdue University Indianapolis
W Geller, Indiana University Purdue University Indianapolis
B Kitchens*, Indiana University Purdue University Indianapolis
M Misiurewicz, Indiana University Purdue University Indianapolis
(102437197)

10:30 a.m.
Actions of AbelianbyCyclic Groups generated by Diffeomorphisms Close to the Identity.
Anne E McCarthy*, Temple University
(102437119)

Saturday March 3, 2007, 8:00 a.m.10:50 a.m.
Special Session on Computational and Combinatorial Aspects of Tiling and Substitutions, I
Room 3106, Chambers Building Organizers: Chaim GoodmanStrauss, University of Arkansas strauss@uark.edu
Casey Mann, University of Texas at Tyler
Edmund O. Harriss, Queen Mary University of London

8:00 a.m.
Escherization.
Craig S Kaplan*, University of Waterloo
(10246894)

8:30 a.m.
Spontaneous geometry via circle packing.
Ken Stephenson*, University of Tennessee
(102451113)

9:00 a.m.
An approach to the diffraction of quasicrystallographic random tilings.
C Richard*, University of Bielefeld, Germany
(102443172)

9:30 a.m.
Shape theory and substitution tiling spaces.
Alex Clark*, University of North Texas
John Hunton, University of Leicester
Catherine LlewellynJones, University of Leicester
(102437194)

10:00 a.m.
Algebraic Descriptions of Complex Geometric Shapes.
Natasha Jonoska, University of South Florida
Gregory McColm*, University of South Florida
(102452198)

10:30 a.m.
Recursive renewablity and primitive substitutiveness of rotation words.
Shigeki Akiyama*, Niigata University
(102411167)

Saturday March 3, 2007, 8:00 a.m.10:50 a.m.
Special Session on Geometric and Combinatorial Methods in Representation Theory, I
Room 2187, Chambers Building Organizers: Brian Boe, University of Georgia
William A. Graham, University of Georgia wag@math.uga.edu
Kailash C. Misra, North Carolina State University

8:00 a.m.
Quantum Group Cohomology.
Christopher P. Bendel*, University of WisconsinStout
Daniel K. Nakano, University of Georgia
Brian J. Parshall, University of Virginia
Cornelius Pillen, University of South Alabama
(10242064)

8:30 a.m.
Selfextensions for finite symplectic groups via algebraic groups.
Cornelius Pillen*, University of South Alabama
(102420228)

9:00 a.m.
Representation type of blocks of Category $\mathcal{O}_S$.
Kenyon J. Platt*, University of Georgia
(102408176)

9:30 a.m.
Cohomology of Category $\mathcal O$ for the Virasoro algebra.
Brian Boe, University of Georgia
Dan Nakano, University of Georgia
Emilie Wiesner*, University of Georgia
(102417214)

10:00 a.m.
Dual combinatorics of clusters.
Nathan Reading*, NC State University
David E Speyer, University of Michigan
(102405186)

10:30 a.m.
Discussion.

Saturday March 3, 2007, 8:00 a.m.10:50 a.m.
Special Session on Computational Group Theory, I
Room 3084, Chambers Building Organizers: Arturo Magidin, University of Louisiana at Lafayette magidin@member.ams.org
Luise Charlotte Kappe, Binghamton University
Robert F. Morse, University of Evansville

8:00 a.m.
Applications of CGT to the theory of groups.
Robert Fitzgerald Morse*, Department of Electrical Engineering and Computer Science, University of Evansville
(102420141)

9:00 a.m.
On the $p$groups of maximal class (Preliminary report).
Heiko Dietrich*, Technische Universitaet Braunschweig, Institut Computational Mathematics (Germany)
Bettina Eick, Technische Universitaet Braunschweig, Institut Computational Mathematics (Germany)
(102420128)

9:30 a.m.
On the construction of CF pro$p$groups by coclass.
Doerte Feichtenschlager*, Technische Universitaet Braunschweig
Bettina Eick, Technische Universitaet Braunschweig
(10242041)

10:00 a.m.
Rewriting systems for a family of perfect groups.
Jack Schmidt*, University of Kentucky
(102420130)

10:30 a.m.
Computing automorphism groups of general linear groups.
Margret Soley Jonsdottir*, Colorado State University
(102420258)

Saturday March 3, 2007, 8:00 a.m.10:50 a.m.
Special Session on Commutative Rings and Monoids, I
Room 2164, Chambers Building Organizers: Evan G. Houston, University of North Carolina, Charlotte eghousto@email.uncc.edu
Thomas G. Lucas, University of North Carolina, Charlotte tglucas@email.uncc.edu

Saturday March 3, 2007, 8:00 a.m.10:50 a.m.
Special Session on Commutative Algebra and Algebraic Geometry, I
Room 2146, Chambers Building Organizers: Florian Enescu, Georgia State University
Andrew R. Kustin, University of South Carolina
Adela N. Vraciu, University of South Carolina vraciu@math.sc.edu

8:00 a.m.
On the degree two entry of a Gorenstein $h$vector and a conjecture of Stanley.
Juan Migliore, University of Notre Dame
Uwe Nagel*, University of Kentucky
Fabrizio Zanello, University of Notre Dame
(102413137)

8:30 a.m.
Codimension Four Gorenstein Hilbert functions of low initial degree.
Juan C. Migliore*, University of Notre Dame
Uwe Nagel, University of Kentucky
Fabrizio Zanello, University of Notre Dame
(102413125)

9:00 a.m.
A Class of Gorenstein Artin Algebras of Embedding Dimension Four.
Sabine ElKhoury*, University of Missouri
Hema Srinivasan, University of Missouri
(102413120)

9:30 a.m.
A criterion for integral dependence of modules.
Javid Validashti*, Purdue University
Bernd Ulrich, Purdue University
(10241330)

10:00 a.m.
Rings with small HilbertKunz multiplicity.
Ian M Aberbach*, University of Missouri
Florian Enescu, Georgia State University
(102413185)

10:30 a.m.
Second coefficients of HilbertKunz functions for domains.
Mel Hochster, University of Michigan
Yongwei Yao*, Georgia State University
(102413103)

Saturday March 3, 2007, 8:30 a.m.10:50 a.m.
Special Session on Applicable Algebra, I
Room 2084, Chambers Building Organizers: Nigel Boston, University of South Carolina
Hiren Maharaj, Clemson University hmahara@clemson.edu

8:30 a.m.
Automorphisms, isomorphisms, and algebraic geometry codes.
Gretchen L. Matthews*, Clemson University
(102414169)

9:00 a.m.
Computation of Explicit Bases for a Class of RiemannRoch Spaces.
Wendy Dandurand*, Clemson University
(102414252)

9:30 a.m.
MDS or NearMDS SelfDual Codes.
T. Aaron Gulliver, University of Victoria
JonLark Kim*, University of Louisville
Yoonjin Lee, Simon Fraser University
(102494107)

10:00 a.m.
Implementing a Gradient Descent Decoding Algorithm for Block Codes.
Robert A Liebler*, Colorado State University
(102494111)

10:30 a.m.
A Fast Fourier Transform on the Rook Monoid.
Martin Malandro*, Dartmouth College
Dan Rockmore, Dartmouth College
(10242022)

Saturday March 3, 2007, 8:30 a.m.10:50 a.m.
Special Session on Representation Theory and Galois Cohomology in Number Theory, I
Room 2130, Chambers Building Organizers: J\'an Min\'{a}\v{c}, University of Western Ontario minac@uwo.ca
John R. Swallow, Davidson College joswallow@davidson.edu
Chairs: Parimala Raman, Emory University

8:30 a.m.
Maximal Frattini quotients of $p$Poincar\'e Mapping class groups.
Michael D. Fried*, UC Irvine, MSUBillings
(10242078)

9:00 a.m.
Tame pro$p$groups.
John Labute*, McGill University
(102406109)

9:30 a.m.
Demushkin Galois groups and primary elements.
Ido Efrat*, BenGurion University of the Negev, Be'erSheva, Israel
(10241212)

10:00 a.m.
Galois Module Structure of Galois Cohomology and Applications.
Nicole Lemire*, University of Western Ontario
Jan Minac, University of Western Ontario
John Swallow, Davidson College
(102412232)

10:30 a.m.
Etale Cohomology as Galois Modules.
Andrew C Schultz*, Stanford University
(102414147)

Saturday March 3, 2007, 8:30 a.m.10:50 a.m.
Special Session on Algebraic and Extremal Combinatorics, I
Room 3068, Chambers Building Organizers: G\'abor Hetyei, University of North CarolinaCharlotte
L\'aszl\'o A. Sz\'ekely, University of South Carolina szekely@math.sc.edu

8:30 a.m.
The majexc $q$Eulerian Polynomials.
John Shareshian, Washington University
Michelle L. Wachs*, University of Miami
(102405247)

9:00 a.m.
$q$Eulerian polynomials and the $q,t$Catalan sequence.
Jim Haglund*, University of Pennsylvania
Mahir Can, University of Western Ontario
(102405215)

9:30 a.m.
Counting weighted simplicial spanning trees of shifted complexes.
Art M. Duval*, University of Texas at El Paso
Caroline J. Klivans, University of Chicago
Jeremy L. Martin, University of Kansas
(102405191)

10:00 a.m.
Bijective Matrix Inversion.
Nicholas A. Loehr*, College of William and Mary
Anthony Mendes, California Polytechnic State University
(102405134)

10:30 a.m.
Counting tromino tilings and parity.
Michael Reid*, University of Central Florida
(10240556)

Saturday March 3, 2007, 8:30 a.m.10:50 a.m.
Special Session on Noncommutative Algebra, I
Room 2198, Chambers Building Organizers: Ellen E. Kirkman, Wake Forest University kirkman@wfu.edu
James J. Kuzmanovich, Wake Forest University
James Zhang, University of Washington

8:30 a.m.
On deformation theory of associative algebras and graph homology.
Fusun Akman*, Illinois State University
(10241813)

9:00 a.m.
Point Modules over a $\mathbb{Z}^2$graded quantum $\mathbb{P}^3$.
Pete Goetz*, Humboldt State University
(102416199)

9:30 a.m.
Noetherianity and Ext.
Edward L Green*, Virginia Tech
Nicole Snashall, Univesity of Leicester, UK
Oeyvind Solberg, NTNU, Norway
Dan Zacharia, Syracuse University
(102416233)

10:00 a.m.
Absolute, Gorenstein, and Tate torsion modules.
Alina C. Iacob*, University of North Carolina Wilmington
(10241826)

10:30 a.m.
BrauerSeveri Varieties over Surfaces.
Colin J Ingalls*, University of New Brunswick
(102416225)

Saturday March 3, 2007, 9:00 a.m.10:50 a.m.
Special Session on Microlocal Analysis and Partial Differential Equations (in Honor of Michael E. Taylor's 60th Birthday), I
Room 3234, Chambers Building Organizers: Anna L. Mazzucato, Pennsylvania State University alm24@psu.edu
Martin Dindos, University of Edinburgh

Saturday March 3, 2007, 9:30 a.m.10:50 a.m.
Special Session on Between Harmonic Analysis, Number Theory, and Combinatorics, I
Room 3198, Chambers Building Organizers: Alex Iosevich, University of MissouriColumbia
Michael T. Lacey, Georgia Institute of Technology lacey@math.gatech.edu
Konstantin Oskolkov, University of South Carolina

Saturday March 3, 2007, 9:30 a.m.10:50 a.m.
Special Session on Stochastic Analysis and Applications, I
Room 3209, Chambers Building Organizers: Armando Arcini\'ega, University of Texas at San Antonio armando.arciniega@utsa.edu

Saturday March 3, 2007, 11:10 a.m.12:00 p.m.
Invited Address
Eigenvalue problem for Hermitian matrices and its generalization to arbitrary reductive groups.
Hance Auditorium, 4th Floor, Chambers Building
Shrawan Kumar*, University of North Carolina
(10242201)

Saturday March 3, 2007, 1:50 p.m.2:40 p.m.
Invited Address
Novel applications of algebra to engineering.
Hance Auditorium, 4th Floor, Chambers Building
Nigel Boston*, University of South Carolina
(10249405)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Dynamical Systems, II
Room 3187, Chambers Building Organizers: Emily B. Gamber, Santa Fe Institute
Donna K. Molinek, Davidson College domolinek@davidson.edu
James S. Wiseman, Agnes Scott College

3:00 p.m.
Families of ergodic and exact onedimensional maps.
Julia A Barnes*, Western Carolina University
Jane M Hawkins, University of North Carolina at Chapel Hill
(102437104)

3:30 p.m.
Dynamics of a 3Circle Inversion Map.
Daniel M. Look*, Indiana University of Pennsylvania
(102437164)

4:00 p.m.
Stuttering in the Planar ThreeBody Problem.
Samuel R Kaplan*, University of North Carolina, Asheville
Richard Montgomery, University of California, Santa Cruz
Mark Levi, Penn State
(10243798)

4:30 p.m.
Computational tools for measuring topological entropy.
Sarah Day*, College of William and Mary
Rafael Frongillo, Cornell University
Rodrigo Trevino, University of Texas at Austin
(10243795)

5:00 p.m.
Projectional Entropy in Higher Dimensional Shifts of Finite Type.
Kathleen Madden*, Drew University
Aimee Johnson, Swarthmore College
Steve Kass, Drew University
(10243757)

5:30 p.m.
Some unsolved problems on random ergodic averages.
M\'at\'e Wierdl*, The University of Memphis
(102437158)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Microlocal Analysis and Partial Differential Equations (in Honor of Michael E. Taylor's 60th Birthday), II
Room 3234, Chambers Building Organizers: Anna L. Mazzucato, Pennsylvania State University alm24@psu.edu
Martin Dindos, University of Edinburgh

Saturday March 3, 2007, 3:00 p.m.5:20 p.m.
Special Session on Applicable Algebra, II
Room 2084, Chambers Building Organizers: Nigel Boston, University of South Carolina
Hiren Maharaj, Clemson University hmahara@clemson.edu

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Recent Applications of Numerical Linear Algebra
Room 2209, Chambers Building Organizers: Timothy P. Chartier, Davidson College tichartier@davidson.edu
Amy Langville, College of Charleston

3:00 p.m.
Tensor Analysis of Spectral Images.
Robert J Plemmons*, Wake Forest University
Peter Zhang, Wake Forest University School of Medicine
Han Wang, Wake Forest University
Paul Pauca, Wake Forest University
(10246569)

3:30 p.m.
Applying theory of Markov Chains to the problem of sports ranking.
Anjela Y Govan*, North Carolina State University
Carl D Meyer, North Carolina State University
(102415192)

4:00 p.m.
The Stewart Eigenvector: A New Method to Cluster Asymmetric Matrices.
Barbara E. Ball*, College of Charleston
Clare J. Rodgers, College of Charleston
(102415202)

4:30 p.m.
Implicit Adaptive Mesh Refinement for Reduced Resistive Magnetohydrodynamics.
Bobby Philip*, Los Alamos National Laboratory
Michael Pernice, Idaho National Laboratory
Luis Chacon, Los Alamos National Laboratory
(102465230)

5:00 p.m.
Multigrid Methods for Systems of PDEs.
Jim E. Jones*, Florida Institue of Technology
(102465234)

5:30 p.m.
The Kronecker product in efficient imaging systems.
Nikos P. Pitsianis*, Dept. of Electrical and Computer Engineering and Computer Science, Duke University
(102415262)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Computational and Combinatorial Aspects of Tiling and Substitutions, II
Room 3106, Chambers Building Organizers: Chaim GoodmanStrauss, University of Arkansas strauss@uark.edu
Casey Mann, University of Texas at Tyler
Edmund O. Harriss, Queen Mary University of London

3:00 p.m.
Rigidity in onedimensional substitution tiling spaces.
Marcy M Barge*, Montana State University
Richard C Swanson, Montana State University
(10243792)

3:30 p.m.
Mixing properties of substitutive sequences and proximality.
Brian F Martensen*, Minnesota State University
(102437249)

4:00 p.m.
Cohomology and the spectrum in 1dimensional tiling systems.
Tetyana I. Andress, The George Washington University
E. Arthur Robinson*, The George Washington University
(102437237)

4:30 p.m.
Discussion.

5:00 p.m.
Onedimensional substitution tilings with an interval projection structure.
Edmund O. Harriss, Imperial College London, UK
Jeroen S.W. Lamb*, Imperial College London
(102452162)

5:30 p.m.
Aspects of the Penrose Tiling.
Edmund Harriss*, Imperial College London, UK
(10240040)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Between Harmonic Analysis, Number Theory, and Combinatorics, II
Room 3198, Chambers Building Organizers: Alex Iosevich, University of MissouriColumbia
Michael T. Lacey, Georgia Institute of Technology lacey@math.gatech.edu
Konstantin Oskolkov, University of South Carolina

3:00 p.m.
Orthogonality of bilinear multiplier operators.
Geoff Diestel*, University of South Carolina
Loukas Grafakos, University of Missouri
(10244237)

3:30 p.m.
Covering the plane by rotations of a lattice arrangement of disks.
Alex Iosevich, Univ. of Missouri at Columbia
Mihail N Kolountzakis*, Georgia Tech / Univ. of Crete, Greece
Mate Matolcsi, Renyi Institute, Hungary
(10244271)

4:00 p.m.
Time decay of quantum waves on Riemannian manifolds: Recent development.
Shijun Zheng*, University of South Carolina
(10243581)

4:30 p.m.
Growth of $L^p$ Lebesgue constants for convex polyhedra and other regions.
Marshall Ash, DePaul University
Laura De Carli*, Florida International University
(102442136)

5:00 p.m.
Level curves of harmonic functions.
Steve M Hudson*, Florida International University
Laura De Carli, Florida International University
(102442226)

5:30 p.m.
Polyhdral theta functions and an extension of solid angles using Polyhedral Gauss sums.
Sinai Robins*, Temple University
(10240523)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Geometric and Combinatorial Methods in Representation Theory, II
Room 2187, Chambers Building Organizers: Brian Boe, University of Georgia
William A. Graham, University of Georgia wag@math.uga.edu
Kailash C. Misra, North Carolina State University

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Computational Group Theory, II
Room 3084, Chambers Building Organizers: Arturo Magidin, University of Louisiana at Lafayette magidin@member.ams.org
Luise Charlotte Kappe, Binghamton University
Robert F. Morse, University of Evansville

3:00 p.m.
Some computational group cohomology.
Graham Ellis*, National University of Ireland, Galway
(10242083)

4:00 p.m.
Using GAP to construct metablian pgroups and working with them.
Dave Garrison*, Lockheed Martin
(102420106)

4:30 p.m.
Character tables of $p$groups.
Adriana Nenciu*, University of Wisconsin  Madison
(102420159)

5:00 p.m.
An algorithm for computing the nonabelian tensor squares of polycyclic groups.
Russell D. Blyth*, Saint Louis University
Robert Fitzgerald Morse, University of Evansville
(10242080)

5:30 p.m.
The exponents of nonabelian tensor products of groups.
Primoz Moravec*, IMFM, Slovenia, and University of Evansville, USA
(102420121)

Saturday March 3, 2007, 3:00 p.m.5:20 p.m.
Special Session on Representation Theory and Galois Cohomology in Number Theory, II
Room 2130, Chambers Building Organizers: J\'an Min\'{a}\v{c}, University of Western Ontario minac@uwo.ca
John R. Swallow, Davidson College joswallow@davidson.edu
Chairs: David Leep, University of Kentucky

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Commutative Rings and Monoids, II
Room 2164, Chambers Building Organizers: Evan G. Houston, University of North Carolina, Charlotte eghousto@email.uncc.edu
Thomas G. Lucas, University of North Carolina, Charlotte tglucas@email.uncc.edu

3:00 p.m.
On the $\Delta$set of a singular arithmetical congruence monoid.
Scott T. Chapman*, Trinity University
Paul Baginski, University of California at Berkeley
George Schaeffer, Carnegie Mellon University
(102420124)

3:30 p.m.
Monoids of modules over onedimensional local rings.
W. Hassler, KarlFranzensUniversitaet Graz
R. Karr, Florida Atlantic University
L. Klingler, Florida Atlantic University
R. Wiegand*, University of Nebraska
(102413117)

4:00 p.m.
Indecomposable Modules of Large Rank over CohenMacaulay Rings.
Andrew M. Crabbe*, University of Nebraska  Lincoln
(102413251)

4:30 p.m.
Jonsson Modules over Commutative Rings.
Greg G Oman*, Ohio State
(102413206)

5:00 p.m.
On $\ast $completely integrally closed domains and their generalizations.
David F Anderson, University of Tennessee, Knoxville, TN
Muhammad Zafrullah*, Pocatello, Idaho
(102413140)

5:30 p.m.
A generalization of the notion of grade of a commutative domain.
K Alan Loper*, Ohio State University
(102413184)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Commutative Algebra and Algebraic Geometry, II
Room 2146, Chambers Building Organizers: Florian Enescu, Georgia State University
Andrew R. Kustin, University of South Carolina
Adela N. Vraciu, University of South Carolina vraciu@math.sc.edu

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Algebraic and Extremal Combinatorics, II
Room 3068, Chambers Building Organizers: G\'abor Hetyei, University of North CarolinaCharlotte
L\'aszl\'o A. Sz\'ekely, University of South Carolina szekely@math.sc.edu

3:00 p.m.
Color critical hypergraphs and forbidden configurations.
R Anstee, The University of British Columbia
B Fleming, The University of British Columbia
Z Furedi*, University of Illinois at UrbanaChampaign
A Sali, Renyi Institute of Mathematics
(102405208)

3:30 p.m.
Random Mixed Hypergraphs and Upper Chromatic Number.
Michael J Pelsmajer*, Illinois Institute of Technology
Jozef Skokan, London School of Economics
(102405227)

4:00 p.m.
Almost All Permutations Have a Unique Longest Cycle.
Miklos Bona*, University of Florida
Arnold Knopfmacher, University of Witwatersrand, Johannesburg, South Africa
(10240547)

4:30 p.m.
The Wiener index of trees with given degree sequence.
Hua Wang*, University of Florida
(10240538)

5:00 p.m.
Maximum directed cuts in digraphs with degree restriction.
Jen\H{o} Lehel*, The University of Memphis
Fr\'ed\'eric Maffray, CNRS Laboratoire LeibnizIMAG, France
Myriam Preissmann, CNRS Laboratoire LeibnizIMAG, France
(102405100)

5:30 p.m.
Trianglefree subcubic graphs with minimum bipartite density.
Baogang Xu, Nanjing Normal University
Xingxing Yu*, Georgia Institute of Technology
(102405174)

Saturday March 3, 2007, 3:00 p.m.5:50 p.m.
Special Session on Noncommutative Algebra, II
Room 2198, Chambers Building Organizers: Ellen E. Kirkman, Wake Forest University kirkman@wfu.edu
James J. Kuzmanovich, Wake Forest University
James Zhang, University of Washington

Saturday March 3, 2007, 3:00 p.m.5:20 p.m.
Special Session on Stochastic Analysis and Applications, II
Room 3209, Chambers Building Organizers: Armando Arcini\'ega, University of Texas at San Antonio armando.arciniega@utsa.edu

Saturday March 3, 2007, 3:00 p.m.5:25 p.m.
Contributed Papers Session
Room 3196, Chambers Building

3:00 p.m.
Invariant for Minimal Surfaces in $S^3$.
Rodrigo R Montes*, Washington University in Saint Louis
(10245310)

3:15 p.m.
On the Value Function for an Optimal Control Problem.
Jesus A. Pascal*, ABTIAmerican University of Nigeria
(10244924)

3:30 p.m.
Properties of Regular Polygon Rings.
W. Michael Gentry*, Mary Baldwin College, Staunton, Va.
(102497149)

3:45 p.m.
Symplectic discretization of ODEs using the geometry of time.
Jeffrey K. Lawson*, Western Carolina University
(102434201)

4:00 p.m.
Archimedean Orders on Certain Ring of Invariants.
Mohammed Tesemma, Spelman College
Haohao Wang*, Southeast Missouri State University
(10241333)

4:15 p.m.
Amorphic association schemes.
Jianmin Ma*, Oxford College of Emory University
(10240584)

4:30 p.m.
Generalized Mobius Inversions Involving SelbergMultiplicative Functions.
Fangjun Arroyo*, Francis Marion University
Edward Arroyo, Francis Marion University
(10240539)

4:45 p.m.
Sign changes in sums of the Liouville function.
Michael J. Mossinghoff*, Davidson College
Peter Borwein, Simon Fraser University
Ron Ferguson, Simon Fraser University
(102411101)

5:00 p.m.
On the diophantine equation: $A^2 + B^4 + C^4 = D^8$.
Susil Kumar Jena*, KIIT University, Bhubaneswar, India
(102411216)

5:15 p.m.
Local Types of Modules and Indecomposable Modules.
SoonSook Bae*, Kyungnam University, MASAN, Republic of Korea (South Korea)
(10241620)

Saturday March 3, 2007, 6:00 p.m.7:00 p.m.
Erd\H os Memorial Lecture
Erd\H os's dream and pretentious characters.
Auditorium, Duke Performance Hall
Andrew J. Granville*, University of Montreal
(10241104)

Saturday March 3, 2007, 7:00 p.m.7:45 p.m.
Davidson College Department of Mathematics Reception
First Floor, Knobloch Campus Center (just outside the performance hall)
Sunday March 4, 2007

Sunday March 4, 2007, 8:00 a.m.12:00 p.m.
Meeting Registration
Gallery, Chambers Building

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Dynamical Systems, III
Room 3187, Chambers Building Organizers: Emily B. Gamber, Santa Fe Institute
Donna K. Molinek, Davidson College domolinek@davidson.edu
James S. Wiseman, Agnes Scott College

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Computational and Combinatorial Aspects of Tiling and Substitutions, III
Room 3106, Chambers Building Organizers: Chaim GoodmanStrauss, University of Arkansas strauss@uark.edu
Casey Mann, University of Texas at Tyler
Edmund O. Harriss, Queen Mary University of London

8:00 a.m.
Classification of Mnohedral 2isohedral Tilings.
John Berglund*, Winnetka Learning Center, New Hope, MN
(10245279)

8:30 a.m.
Hexagonal parquet tilings and $k$isohedral monotiles.
Joshua E. S. Socolar*, Physics Department and Center for Nonlinear and Complex Systems, Duke University
(10240028)

9:00 a.m.
Heesch numbers of polyforms with marked edges.
Casey Mann*, The University of Texas at Tyler
Bobby Thomas, The University of Texas at Tyler
(10245243)

9:30 a.m.
Aperiodc Archimedean Tilings.
Nathan D Wetzler*, University of Arkansas at Fayetteville
(102405196)

10:00 a.m.
About two tilings of the hyperbolic plane.
Maurice Margenstern*, Universit\'e Paul Verlaine  Metz, LITA, EA 3097
(10240576)

10:30 a.m.
A new undecidability proof for the tiling problem: The tiling problem is undecidable both in the Euclidean and in the hyperbolic plane.
Jarkko Kari*, University of Turku, Finland
(10246875)

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Geometric and Combinatorial Methods in Representation Theory, III
Room 2187, Chambers Building Organizers: Brian Boe, University of Georgia
William A. Graham, University of Georgia wag@math.uga.edu
Kailash C. Misra, North Carolina State University

8:00 a.m.
On Kostant's Theorem for Lie Algebra Cohomology.
Daniel K. Nakano*, University of Georgia
(102420166)

8:30 a.m.
Dual graded graphs for KacMoody algebras.
Thomas Lam, Harvard University
Mark Shimozono*, Virginia Polytechnic Institute and State University
(10240563)

9:00 a.m.
Column removal in characteristic p.
Monica J Vazirani*, UC Davis
(102405170)

9:30 a.m.
'Signed' Representations of the Symmetric Group.
David Hemmer, University of Toledo
Jonathan Kujawa*, University of Georgia
(102420213)

10:00 a.m.
Macdonald Difference Operators and HarishChandra Series.
Gail Letzter*, Department of Defense
Jasper V Stokman, University of Amsterdam
(102417139)

10:30 a.m.
A new perspective on the FrenkelZhu fusion rule theorem.
Alex J. Feingold*, State University of New York, Binghamton, NY
(102416150)

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Computational Group Theory, III
Room 3084, Chambers Building Organizers: Arturo Magidin, University of Louisiana at Lafayette magidin@member.ams.org
Luise Charlotte Kappe, Binghamton University
Robert F. Morse, University of Evansville

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Commutative Rings and Monoids, III
Room 2164, Chambers Building Organizers: Evan G. Houston, University of North Carolina, Charlotte eghousto@email.uncc.edu
Thomas G. Lucas, University of North Carolina, Charlotte tglucas@email.uncc.edu

8:00 a.m.
Irreducible Divisor Graphs in Commutative Rings with Zero Divisors.
Michael C. Axtell, Wabash College
Joe A. Stickles, Jr.*, Millikin University
(102413142)

8:30 a.m.
Homology on Irreducible Divisor Graphs.
Jack Maney*, The University of South Dakota
(102413160)

9:00 a.m.
The zerodivisor graph of a commutative ring.
David F. Anderson*, University of Tennessee
(10241373)

9:30 a.m.
The ZeroDivisor Graph of a Maximal Ring of Quotients.
John D. LaGrange*, The University of Tennessee
(10241354)

10:00 a.m.
Sums of 2 units and almost diagonal matrices.
Peter Vamos, University of Exeter
Sylvia M Wiegand*, University of Nebraska Lincoln
(102413118)

10:30 a.m.
Integral extensions of Clifford regular domains.
Lucian F Sega*, West Lafayette, IN
(102413207)

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Commutative Algebra and Algebraic Geometry, III
Room 2146, Chambers Building Organizers: Florian Enescu, Georgia State University
Andrew R. Kustin, University of South Carolina
Adela N. Vraciu, University of South Carolina vraciu@math.sc.edu

8:00 a.m.
Extvanishing and ascent of module structures.
Anders J. Frankild, University of Copenhagen
Sean SatherWagstaff*, Kent State University
Roger A. Wiegand, University of NebraskaLincoln
(102413210)

8:30 a.m.
Modules with prescribed cohomological support.
Luchezar L. Avramov*, University of Nebraska
Srikanth Iyengar, University of Nebraska
(102413204)

9:00 a.m.
Modules with linear resolution.
Liana M Sega*, University of Missouri Kansas City
(102413244)

9:30 a.m.
The failure of tameness of local cohomology.
Steven Dale Cutkosky*, University of Missouri
Juergen Herzog, University of Essen
(102413168)

10:00 a.m.
Homological aspects of modules over complete intersections.
David A. Jorgensen*, University of Texas at Arlington
(102413138)

10:30 a.m.
A necessary condition for the vanishing of some local cohomology in complete regular local rings.
Gennady Lyubeznik*, University of Minnesota
(10241377)

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Algebraic and Extremal Combinatorics, III
Room 3068, Chambers Building Organizers: G\'abor Hetyei, University of North CarolinaCharlotte
L\'aszl\'o A. Sz\'ekely, University of South Carolina szekely@math.sc.edu

8:00 a.m.
Irreducible circuits and Coxeter arrangements.
John R Stembridge*, University of Michigan
(10240550)

8:30 a.m.
Toric arrangements.
Richard Ehrenborg*, University of Kentucky
Margaret Readdy, University of Kentucky
Michael Slone, University of Kentucky
(102405212)

9:00 a.m.
Extremal Properties for Lie Theoretic Posets?
Robert A. Proctor*, University of North CarolinaChapel Hill
(102405229)

9:30 a.m.
Generalizations of Simplices and Cyclic Polytopes.
Margaret M Bayer*, University of Kansas
(102452114)

10:00 a.m.
Extremal posets arising from semisimple Lie algebra representations.
Robert G. Donnelly*, Murray State University
(10240586)

10:30 a.m.
On the Isomorphisms of Monomial Graphs.
Vasyl Dmytrenko, Temple University
Felix Lazebnik*, University of Delaware
Raymond Viglione, Kean University
(102405178)

Sunday March 4, 2007, 8:00 a.m.10:50 a.m.
Special Session on Noncommutative Algebra, III
Room 2198, Chambers Building Organizers: Ellen E. Kirkman, Wake Forest University kirkman@wfu.edu
James J. Kuzmanovich, Wake Forest University
James Zhang, University of Washington

Sunday March 4, 2007, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Gallery, Chambers Building

Sunday March 4, 2007, 8:30 a.m.10:50 a.m.
Special Session on Applicable Algebra, III
Room 2084, Chambers Building Organizers: Nigel Boston, University of South Carolina
Hiren Maharaj, Clemson University hmahara@clemson.edu

Sunday March 4, 2007, 8:30 a.m.10:50 a.m.
Special Session on Representation Theory and Galois Cohomology in Number Theory, III
Room 2130, Chambers Building Organizers: J\'an Min\'{a}\v{c}, University of Western Ontario minac@uwo.ca
John R. Swallow, Davidson College joswallow@davidson.edu
Chairs: Michael D. Fried, University of California Irvine

8:30 a.m.
Gluing representations via idempotent modules and constructing endotrivial modules.
Paul Balmer, ETH, Zuerich
David Benson, University of Aberdeen
Jon F Carlson*, University of Georgia
(102420112)

9:00 a.m.
Modules of Constant Jordan type.
Jon Carlson, University of Georgia
Eric Friedlander, Northwestern University
Julia Pevtsova*, University of Washington
(102420195)

9:30 a.m.
Stable cohomology in commutative algebra.
Luchezar L. Avramov*, University of Nebraska
(102418205)

10:00 a.m.
Tate cohomology often fails to detect $``$nullhomotopy$"$.
David J Benson, University of Aberdeen
Sunil K Chebolu*, University of Western Ontario
J Daniel Christensen, University of Western Ontario
J\'{a}n Min\'{a}\v{c}, UNiversity of Western Ontario
(10241790)

10:30 a.m.
Systems of Quadratic Forms defined over $p$adic Fields.
David B. Leep*, University of Kentucky
(102411200)

Sunday March 4, 2007, 9:00 a.m.10:50 a.m.
Special Session on Microlocal Analysis and Partial Differential Equations (in Honor of Michael E. Taylor's 60th Birthday), III
Room 3234, Chambers Building Organizers: Anna L. Mazzucato, Pennsylvania State University alm24@psu.edu
Martin Dindos, University of Edinburgh

9:00 a.m.
Wellposedness and regularity for anisotropic elasticity with mixed boundary conditions in "domains with polyhedral structure".
Anna L. Mazzucato*, Penn State University
Victor Nistor, Penn State University
(102435156)

9:30 a.m.
Problems associated with a moving airfoil.
Mark Farris*, Midwestern State University
(102435177)

10:00 a.m.
Mathematics of Invisibility.
Allan Greenleaf, University of Rochester
Yaroslav Kurylev, Loughborough University
Matti Lassas, Helsinki University of Technology
Gunther Uhlmann*, University of Washington
(102435242)

10:30 a.m.
Studying the normal form of the NavierStokes equations in suitable Banach spaces.
Foias Ciprian, Indiana University and Texas A&M University
Luan Thach Hoang*, University of Minnesota
Eric Olson, University of Nevada
Mohammed Ziane, University of Southern California
(10243525)

Sunday March 4, 2007, 9:30 a.m.10:50 a.m.
Special Session on Between Harmonic Analysis, Number Theory, and Combinatorics, III
Room 3198, Chambers Building Organizers: Alex Iosevich, University of MissouriColumbia
Michael T. Lacey, Georgia Institute of Technology lacey@math.gatech.edu
Konstantin Oskolkov, University of South Carolina

Sunday March 4, 2007, 11:10 a.m.12:00 p.m.
Invited Address
Growth, aperiodicity, and undecidability.
Hance Auditorium, 4th Floor, Chambers Building
Chaim GoodmanStrauss*, University of Arkansas at Fayetteville
(10245203)

Sunday March 4, 2007, 1:50 p.m.2:40 p.m.
Invited Address
Analysis, combinatorics, and arithmetic of incidence theory.
Hance Auditorium, 4th Floor, Chambers Building
Alex Iosevich*, University of MissouriColumbia
(10244202)

Sunday March 4, 2007, 3:00 p.m.5:50 p.m.
Special Session on Computational and Combinatorial Aspects of Tiling and Substitutions, IV
Room 3106, Chambers Building Organizers: Chaim GoodmanStrauss, University of Arkansas strauss@uark.edu
Casey Mann, University of Texas at Tyler
Edmund O. Harriss, Queen Mary University of London

3:00 p.m.
Generalized betaexpansions, substitution tilings, and local finiteness.
Natalie Priebe Frank*, Vassar College
E. A. Robinson, Jr., George Washington University
(102452235)

3:30 p.m.
Topology of (some) tiling spaces without finite local complexity.
Lorenzo Sadun*, University of Texas
(102437254)

4:00 p.m.
Tilings generated by nonPisot companion matrices.
Shunji Ito*, University of Kanazawa, Kanazawa Japan
(102452211)

4:30 p.m.
My view on Pisot substitutions.
Bernd Sing*, The Open University
(10241162)

5:00 p.m.
About duality of cutandproject tilings.
Dirk Frettloh*, Univ. Bielefeld, Germany
(10245174)

5:30 p.m.
Automata for Factor Languages of Twodimensional Sofic Shifts.
Natasha Jonoska*, University of South Florida
Joni B. Pirnot, Manatee Community College
(102468253)

Sunday March 4, 2007, 3:00 p.m.5:50 p.m.
Special Session on Geometric and Combinatorial Methods in Representation Theory, IV
Room 2187, Chambers Building Organizers: Brian Boe, University of Georgia
William A. Graham, University of Georgia wag@math.uga.edu
Kailash C. Misra, North Carolina State University

Sunday March 4, 2007, 3:00 p.m.5:50 p.m.
Special Session on Computational Group Theory, IV
Room 3084, Chambers Building Organizers: Arturo Magidin, University of Louisiana at Lafayette magidin@member.ams.org
Luise Charlotte Kappe, Binghamton University
Robert F. Morse, University of Evansville

3:00 p.m.
Constructing finite simple groups from irreducible subgroups of $GL_n(2)$.
Gerhard O. Michler*, Cornell University
(10242042)

4:00 p.m.
Simultaneous construction of the sporadic groups $Fi_{22}$ and $Co_2$.
Hyun Kyu Kim*, Cornell University
Gerhard O. Michler, Cornell University
(102420123)

4:30 p.m.
Groups with a Finite Covering by Isomorphic Abelian Subgroups.
Matthew F Ragland*, Auburn University Montgomery
Tuval S Foguel, Auburn University Montgomery
(102420188)

5:00 p.m.
Some invariants preserved by isomorphisms of tables of marks.
Luis M. HuertaAparicio, Universidad Michoacana de San Nicolas de Hidalgo
Ariel MolinaRueda, Universidad Michoacana de San Nicolas de Hidalgo
Alberto G. RaggiCardenas, Instituto de Matematicas, UNAM
Luis ValeroElizondo*, Universidad Michoacana de San Nicolas de Hidalgo
(10242016)

5:30 p.m.
Bounding the local distribution of the groupcounting function over nonfifthpowerfree integers.
Claudia A. Spiro*, Axia College, University of Phoenix
(10242046)

Sunday March 4, 2007, 3:00 p.m.5:20 p.m.
Special Session on Representation Theory and Galois Cohomology in Number Theory, IV
Room 2130, Chambers Building Organizers: J\'an Min\'{a}\v{c}, University of Western Ontario minac@uwo.ca
John R. Swallow, Davidson College joswallow@davidson.edu
Chairs: Florian Pop, University of Pennsylvania

Sunday March 4, 2007, 3:00 p.m.5:50 p.m.
Special Session on Commutative Rings and Monoids, IV
Room 2164, Chambers Building Organizers: Evan G. Houston, University of North Carolina, Charlotte eghousto@email.uncc.edu
Thomas G. Lucas, University of North Carolina, Charlotte tglucas@email.uncc.edu

Sunday March 4, 2007, 3:00 p.m.4:50 p.m.
Special Session on Algebraic and Extremal Combinatorics, IV
Room 3068, Chambers Building Organizers: G\'abor Hetyei, University of North CarolinaCharlotte
L\'aszl\'o A. Sz\'ekely, University of South Carolina szekely@math.sc.edu
Inquiries: meet@ams.org

