AMS Sectional Meeting Program by Day
Current as of Tuesday, April 12, 2005 15:10:44
2002 Fall Central Section Meeting
Madison, WI, October 1213, 2002
Meeting #980
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Saturday October 12, 2002

Saturday October 12, 2002, 7:30 a.m.4:30 p.m.
Meeting Registration
Lobby, Van Vleck Hall 
Saturday October 12, 2002, 7:30 a.m.4:30 a.m.
Exhibit and Book Sale
Room B227, Van Vleck Hall 
Saturday October 12, 2002, 9:00 a.m.11:25 a.m.
Special Session on Arithmetic Algebraic Geometry, I
Room B113, Van Vleck Hall
Organizers:
Ken Ono, University of WisconsinMadison ono@math.wisc.edu
Tonghai Yang, University of WisconsinMadison thyang@math.wisc.edu

9:00 a.m.
JungHirzebruch resolution for arithmetic surfaces.
Brian Conrad*, University of Michigan
(9801464) 
9:30 a.m.
Kummer theory of abelian varieties and reductions of MordellWeil groups.
Tom Weston*, University of California, Berkeley
(9801158) 
10:00 a.m.
Euler systems of CM cycles.
Ye Tian*, Columbia University
(98011191) 
10:30 a.m.
Modularity of Galois representations.
Chandrashekhar B Khare*, University of Utah
(9801146) 
11:00 a.m.
Limits of crystalline modular eigenforms.
Frank D Calegari*, Harvard
(98011124)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.10:40 a.m.
Special Session on Several Complex Variables. I
Room B317, Van Vleck Hall
Organizers:
Pat Ahern, University of WisconsinMadison ahern@math.wisc.edu
Xianghong Gong, University of WisconsinMadison gong@math.wisc.edu
Alex Nagel, University of WisconsinMadison nagel@math.wisc.edu
JeanPierre Rosay, University of WisconsinMadison jrosay@math.wisc.edu

9:00 a.m.
Discussion 
10:00 a.m.
Plurisubharmonic functions on ${\Bbb C}^n$ with logarithmic poles in a finite set.
Dan Coman*, Syracuse University
(98032102)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:25 a.m.
Special Session on Harmonic Analysis, I
Room B341, Van Vleck Hall
Organizers:
Alex Ionescu, University of WisconsinMadison ionescu@math.wisc.edu
Andreas Seeger, University of WisconsinMadison seeger@math.wisc.edu

9:00 a.m.
Singular integrals and decoupled domains.
Elias M. Stein*, Princeton University
(98032199) 
10:00 a.m.
On the classical CarlesonHunt theorem in Fourier analysis.
Xiaochun Li, University of California at Los Angeles
Camil Muscalu*, University of California at Los Angeles
(98042155) 
10:30 a.m.
Nonlinear wave equations outside of obstacles.
Christopher D Sogge*, Johns Hopkins University
(98035171) 
11:00 a.m.
$L^p$ bounds for Riesz Transforms associated to divergence form elliptic operators.
Steve Hofmann*, University of MissouriColumbia
J. M. Martell, University of Missouri
(9804240)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Partial Differential Equations and Geometry, I
Room B309, Van Vleck Hall
Organizers:
Sigurd Angenent, University of WisconsinMadison angenent@math.wisc.edu
Mikhail Feldman, University of WisconsinMadison feldman@math.wisc.edu

9:00 a.m.
Number of minimal graphs with disjoint support.
Peter Li, UC, Irvine
Jiaping Wang*, University of Minnesota
(98058122) 
10:00 a.m.
Motion of small bubbles by normalized mean curvature in Riemannian manifolds.
N. D. Alikakos, University of Athens (Greece)
A. S. Freire*, University of Tennessee,Knoxville
(98035212) 
10:30 a.m.
Discussion 
11:00 a.m.
Discussion

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Arrangements of Hyperplanes, I
Room B219, Van Vleck Hall
Organizers:
Daniel C. Cohen, Louisiana State University cohen@math.lsu.edu
Peter Orlik, University of WisconsinMadison orlik@math.wisc.edu
Anne Shepler, University of California Santa Cruz ashepler@math.ucsc.edu

9:00 a.m.
The Hodge filtration and the contactorder filtration of derivations of Coxeter arrangements.
Hiroaki Terao*, Tokyo Metropolitan University
(98032118) 
9:30 a.m.
Cohomology of wonderful compactifications and intersection theory on toric varieties.
EvaMaria E. Feichtner*, ETH Zurich
Sergey Yuzvinsky, University of Oregon
(98051156) 
10:00 a.m.
Torsion in homology of Milnor fibres.
D C Cohen, Louisiana State University
G C Denham*, University of Western Ontario
A I Suciu, Northeastern University
(98055270) 
10:30 a.m.
BernsteinSato polynomials and Milnor fibers of generic arrangements.
Uli Walther*, Purdue University / MSRI
(9801449) 
11:00 a.m.
The $\ell^2$cohomology of hyperplane complements.
Michael W. Davis*, The Ohio State University
Tadeusz Januszkiewicz, Wroclaw University and IM PAN
Ian J. Leary, University of Southampton
(98057103)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Group Cohomology and Homotopy Theory, I
Room B235, Van Vleck Hall
Organizers:
Alejandro Adem, University of WisconsinMadison adem@math.wisc.edu
Jesper Grodal, Institute for Advanced Study jg@ias.edu

9:00 a.m.
The classification of quasithin groups (and of finite simple groups).
Stephen D Smith*, University of Illinois at Chicago
(9802052) 
9:30 a.m.
Finite Loop Spaces are Manifolds.
Nitu R Kitchloo*, Johns Hopkins University
Dietrich Notbohm, University of Leicester
(98055113) 
10:00 a.m.
On fusion category algebras of pblocks of finite groups.
Markus Linckelmann*, Ohio State University
(98020318) 
10:30 a.m.
On stacks, 2theories and conformal field theory.
Po Hu*, Wayne State University
(98018256) 
11:00 a.m.
The $p$punctual space of a finite group scheme (Preliminary Report).
Eric M. Friedlander*, Northwesetern University
Julia Pevtsova, Institute for Advanced Study
(98016101)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:25 a.m.
Special Session on Geometric Methods in Differential Equations, I
Room B305, Van Vleck Hall
Organizers:
Gloria Mari Beffa, University of WisconsinMadison maribeff@math.wisc.edu
Peter Olver, University of Minnesota olver@ima.umn.edu

9:00 a.m.
Canonical regularization of the Lie algebra of pseudodifferential operators.
Thierry P Robart*, Howard University
Enrique G Reyes, University of Oklahoma
(98035284) 
9:30 a.m.
Charts for analytic Lie pseudogroups of infinite type.
Niky Kamran*, McGill University
(9805387) 
10:00 a.m.
Discussion 
10:30 a.m.
SubFinsler geometry in dimension 3.
Jeanne N. Clelland*, University of Colorado, Boulder
Christopher G. Moseley, U.S. Military Academy
(98058241) 
11:00 a.m.
Geometry of Parametric Backlund Transformations.
Thomas A. Ivey*, College of Charleston
Jeanne Nielsen Clelland, University of Colorado, Boulder
(98053141)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Effectiveness Questions in Model Theory, I
Room B203, Van Vleck Hall
Organizers:
Charles McCoy, University of WisconsinMadison mccoy@math.wisc.edu
Reed Solomon, University of WisconsinMadison rsolomon@math.wisc.edu
Patrick Speissegger, University of WisconsinMadison speisseg@math.wisc.edu

9:00 a.m.
Effectiveness questions in arithmetic.
Andrew P Arana*, Stanford University
(98003252) 
9:30 a.m.
$\Delta^0_2$categoricity in Abelian pgroups.
Douglas Cenzer*, University of Florida
(98003215) 
10:00 a.m.
Discussion 
10:30 a.m.
Bounding prime, homogeneous, and saturated models.
Barbara F. Csima*, University of Chicago
(98003240) 
11:00 a.m.
Bounding prime, homogeneous, and saturated models {II}.
Denis R. Hirschfeldt*, University of Chicago
(98003267)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Ring Theory and Related Topics, I
Room B105, Van Vleck Hall
Organizers:
Don Passman, University of WisconsinMadison passman@math.wisc.edu

9:00 a.m.
Maximal torsion radicals in $\sigma$[M] and minimal prime Mideals.
John A. Beachy*, Northern Illinois University
(98016233) 
9:30 a.m.
Delta Methods in Enveloping Rings.
Jeffrey Bergen*, DePaul University
(98016147) 
10:00 a.m.
Finitary Groups and Rings.
Richard E. Phillips, Michigan State University
Jeanne Wald*, Michigan State University
(98016127) 
10:30 a.m.
Lie algebras with few centralizer dimensions.
Yiftach D. Barnea*, University of Wisconsin  Madison
I. M. Isaacs, University of Wisconsin  Madison
(9801773) 
11:00 a.m.
CSMatrix Rings over Local Rings.
K. I. Beidar, National ChengKung University
S. K. Jain*, Ohio University
Pramod Kanwar, Ohio UniversityZanesville
J. B. Srivastava, Indian Institute of Technology
(9801656)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.10:45 a.m.
Special Session on Lie Algebras and Related Topics, I
Room B129, Van Vleck Hall
Organizers:
Georgia Benkart, University of WisconsinMadison benkart@math.wisc.edu
Arun Ram, University of WisconsinMadison ram@math.wisc.edu

9:00 a.m.
Multiplicityfree products of Weyl characters.
John R Stembridge*, University of Michigan
(9801788) 
10:00 a.m.
KazhdanLusztig polynomials and character formulae for the supergroups {$GL(mn)$} and {$Q(n)$}.
Jonathan Brundan*, University of Oregon
(98022224)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:25 a.m.
Special Session on Dynamical Systems, I
Room B215, Van Vleck Hall
Organizers:
Sergey Bolotin, University of WisconsinMadison bolotin@math.wisc.edu
Paul Rabinowitz, University of WisconsinMadison rabinowi@math.wisc.edu

9:00 a.m.
Dynamics of Lie algebras and Lie groups on low dimensional real and complex manifolds.
Morris W. Hirsch*, U. Calif., Berkeley. \& U. Wisc., Madison
(9803726) 
9:30 a.m.
Applications of a NashMoser implicit function theorem with Whitney regularity to KAM theory.
John Andrew Vano*, University of Wisconsin at Madison
(9803729) 
10:00 a.m.
Growth of the number of periodic points of a smooth map.
Vadim Kaloshin*, MIT
(9803791) 
10:30 a.m.
Partial hyperbolicity, Lyapunov exponents and stable ergodicity.
Keith Burns*, Northwestern University
Dmitry Dolgopyat, University of Maryland
Yakov Pesin, Pennsylvania State University
(98037166) 
11:00 a.m.
Rigorous Computation of Low Dimensional Structures in Infinite Dimensional Dynamical Systems.
Konstantin Mischaikow*, Georgia Institute of Technology
(9803790)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.10:45 a.m.
Special Session on Probability, I
Room B313, Van Vleck Hall
Organizers:
David Griffeath, University of WisconsinMadison griffeat@math.wisc.edu
Timo Seppalainen, University of WisconsinMadison seppalai@math.wisc.edu

9:00 a.m.
Some rigorous results for the NK model.
Vlada Limic*, University of British Columbia
(9806098) 
10:00 a.m.
Scaling Limit for a FlemingViot Type System.
Ilie Grigorescu*, University of Miami
Min Kang, North Carolina State University
(98060226)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Biological Computation and Learning in Intelligent Systems, I
Room B329, Van Vleck Hall
Organizers:
Shunichi Amari, RIKEN amari@brain.riken.go.jp
Amir Assadi, University of WisconsinMadison assadi@math.wisc.edu
Tomaso Poggio, Massachusetts Institute of Technology tp@ai.mit.edu

9:00 a.m.
On the computing power of a single neuron with dendritic structure.
Gerhard X. Ritter*, University of Florida
Gonzalo Urcid, INAOE
(98068110) 
10:00 a.m.
Dynamical systems analysis of turtle visual cortex.
Philip Ulinski*, University of Chicago
(98092285) 
10:30 a.m.
Neural engineering: Computation, representation, and dynamics in neurobiological systems.
Charles H. Anderson*, Washington University
(98020320) 
11:00 a.m.
Likelihood approaches to neural coding in auditory cortex.
Rick L Jenison*, University of WisconsinMadison
(98092286)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Combinatorics and Special Functions, I
Room B321, Van Vleck Hall
Organizers:
Richard Askey, University of WisconsinMadison askey@math.wisc.edu
Paul Terwilliger, University of WisconsinMadison terwilli@math.wisc.edu

9:00 a.m.
New Formulas for Ramanujan's Tau Function and the Leech Lattice.
Stephen C Milne*, The Ohio State University
(98011305) 
9:30 a.m.
Special Functions Related to Representations of High Dimension Lie Groups.
Alexander Rozenblyum*, New York City College of Technology, CUNY
(9803345) 
10:00 a.m.
Fifth Order Mock Theta Functions.
Boon P Yeap*, University of Illinois at UrbanaChampaign
(98011308) 
10:30 a.m.
A proof of AskeyWilson relations for Leonard pairs.
Raimundas Vidunas*, University of Antwerp
(98033266) 
11:00 a.m.
The pseudo cosine sequences of a distanceregular graph.
A A Pascasio*, De La Salle University
Paul M Terwilliger, University of Wisconsin
(98005311)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Characters and Representations of Finite Groups, I
Room B119, Van Vleck Hall
Organizers:
Martin Isaacs, University of Wisconsin, Madison isaacs@math.wisc.edu
Mark Lewis, Kent State University lewis@mcs.kent.edu

9:00 a.m.
Canonical bases of a small Hecke algebra.
J L Alperin*, University of Chicago
(9802008) 
9:30 a.m.
Linear Limits of Simple Modules over Twisted Group Algebras.
Everett C. Dade*, University of Illinois
(98020188) 
10:00 a.m.
More on the McKay conjecture.
Gabriel Navarro*, University of Valencia
(9802092) 
10:30 a.m.
Systems of Character Isometries.
Harvey I. Blau*, Northern Illinois University
(98020162) 
11:00 a.m.
Reduction theorems for Clifford classes.
Alexandre Turull*, University of Florida
(98020211)

9:00 a.m.

Saturday October 12, 2002, 9:00 a.m.11:20 a.m.
Special Session on Lie Groups and Their Representations, I
Room B131, Van Vleck Hall
Organizers:
R. Michael Howe, University of Wisconsin, Eau Claire hower@uwec.edu
Gail D. Ratcliff, East Carolina University ratcliffg@mail.ecu.edu

9:00 a.m.
Representation theory, spectral geometry, and length spectra .
Ruth Gornet*, University of Texas at Arlington
(98053232) 
9:30 a.m.
A PaleyWiener Property for the Fourier Transform on an Exponential Solvable Lie Group.
Bradley N. Currey*, Saint Louis University
(98022152) 
10:30 a.m.
The Hua system on a Hermitian symmetric space.
Chal Benson*, East Carolina University
(9802234) 
11:00 a.m.
Representations of an Extension of SL(3, R) by an outer automorphism.
Shayan Sen, Drexel University
Maria G Fung*, Western Oregon Univeristy
(98022262)

9:00 a.m.

Saturday October 12, 2002, 9:30 a.m.11:20 a.m.
Special Session on Hyperbolic Differential Equations and Kinetic Theory, I
Room B325, Van Vleck Hall
Organizers:
Shi Jin, University of WisconsinMadison jin@math.wisc.edu
Marshall Slemrod, University of WisconsinMadison slemrod@math.wisc.edu
Athanassios Tzavaras, University of WisconsinMadison tzavaras@math.wisc.edu

9:00 a.m.
Discussion 
9:30 a.m.
Kinetic Formulation and WellPosedness for NonIsotropic Degenerate ParabolicHyperbolic Equations.
GuiQiang G Chen*, Northwestern University
Benoit Perthame, Ecole Normale Superieure (Paris)
(9803513) 
10:00 a.m.
Transition to Instability in Hyperbolic Conservation Laws.
Robin Young*, University of Massachusetts
Walter Szeliga, University of Massachusetts
(98035242) 
10:30 a.m.
Global existence for the full multidimensional compressible NavierStokes equations with with large, symmetric data.
David Hoff, Indiana University
Helge Kristian Jenssen*, Indiana University
(9807610) 
11:00 a.m.
Discussion

9:00 a.m.

Saturday October 12, 2002, 10:00 a.m.11:20 a.m.
Special Session on Optimal Geometry of Curves and Surfaces, I
Room B337, Van Vleck Hall
Organizers:
Jason H. Cantarella, University of Georgia cantarel@math.uga.edu
John M. Sullivan, University of Illinois, Urbana jms@math.uiuc.edu

10:00 a.m.
Analytic aspects of the ropelength problem.
Joseph H.G. Fu*, University of Georgia
(98053312) 
10:30 a.m.
Examples and candidates for the ropelength problem.
Nancy C. Wrinkle*, University of Georgia
(98051315) 
11:00 a.m.
Optimal shapes of curves with finite thickness.
Oscar Gonzalez*, Mathematics/UTAustin
(98049299)

10:00 a.m.

Saturday October 12, 2002, 10:00 a.m.11:25 a.m.
Session for Contributed Papers, I
Room B333, Van Vleck Hall

10:15 a.m.
On some subclass of the Malcev algebras.
Ramiro Carrillo, Instituto de Matematicas, UNAM
Liudmila Sabinina*, Facultad de Ciencias, UAEM
(98017259) 
10:30 a.m.
Coherent families of weight modules of Lie superalgebras.
Dimitar V Grantcharov*, University of California, Riverside
(98016196) 
11:00 a.m.
Array computable degrees and blanketing functions.
Stephen M Walk*, St. Cloud State University
(98003217)

10:15 a.m.

Saturday October 12, 2002, 11:40 a.m.12:30 p.m.
Invited Address
Relations Between GromovWitten Invariants.
Room B102, Van Vleck Hall
Eleny Ionel*, University of Wisconsin 
Saturday October 12, 2002, 2:00 p.m.4:55 p.m.
Special Session on Arithmetic Algebraic Geometry, II
Room B113, Van Vleck Hall
Organizers:
Ken Ono, University of WisconsinMadison ono@math.wisc.edu
Tonghai Yang, University of WisconsinMadison thyang@math.wisc.edu

2:00 p.m.
Supercongruences Between Truncated $_2F_1$ Hypergeometric Functions and Their Gaussian Analogs.
Eric T Mortenson*, University of Wisconsin Madison
(98011130) 
2:30 p.m.
Modular forms for noncongruence subgroups.
WenChing Winnie Li*, Penn State University
Ling Long, Institute for Advanced Study
Zifong Yang, Penn State University
(98011219) 
3:00 p.m.
Exceptional congruences for the coefficients of certain etaproduct newforms.
Matthew Boylan*, University of Illinois
(98011249) 
3:30 p.m.
Discussion 
4:00 p.m.
Extensions of elliptic curves and congruences between modular forms.
Matthew Papanikolas*, Brown University
Niranjan Ramachandran, University of Maryland
(98011117) 
4:30 p.m.
1Motives and Iwasawa Theory.
Cristian D. Popescu*, Johns Hopkins University
(98011128)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:40 p.m.
Special Session on Several Complex Variables, II
Room B317, Van Vleck Hall
Organizers:
Pat Ahern, University of WisconsinMadison ahern@math.wisc.edu
Xianghong Gong, University of WisconsinMadison gong@math.wisc.edu
Alex Nagel, University of WisconsinMadison nagel@math.wisc.edu
JeanPierre Rosay, University of WisconsinMadison jrosay@math.wisc.edu

2:00 p.m.
On CR manifolds embedded in a hyperquadric.
Peter F. Ebenfelt*, U. Califonia, San Diego
Xiaojun Huang, Rutgers U.
Dmitri Zaitsev, U. Tubingen
(98032263) 
3:00 p.m.
On manifolds that are peakinterpolation sets for $A(\Omega)$ for convex domains in $\mathbb{C}^n$.
Gautam Bharali*, University of Michigan
(9803289) 
4:00 p.m.
$L^2$ cohomology of some complete K\" ahler manifolds.
Jeffery D. McNeal*, Ohio State University
(98032107)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:55 p.m.
Special Session on Harmonic Analysis, II
Room B341, Van Vleck Hall
Organizers:
Alex Ionescu, University of WisconsinMadison ionescu@math.wisc.edu
Andreas Seeger, University of WisconsinMadison seeger@math.wisc.edu

2:00 p.m.
Regularity of degenerate MongeAmpere equations in two dimensions.
Eric T. Sawyer*, McMaster University
(98035198) 
2:30 p.m.
Analysis on manifolds with a Lie structure at infinity.
Bernd Ammann, Hamburg U.
Robert Lauter, Mainz U.
Victor Nistor*, Penn State U.
Andras Vasy, MIT
(9805844) 
3:00 p.m.
A Restriction Theorem for a $2$surface in $\Bbb R ^5$.
Daniel M Oberlin*, Florida State University
(98042112) 
3:30 p.m.
Averages over rotations of curves.
Luca Brandolini, University of Bergamo
Allan Greenleaf*, University of Rochester
Giancarlo Travaglini, University of MilanBicocca
(98042176) 
4:00 p.m.
Hankel Forms on the Dirichlet Space and Related Operators.
Richard Rochberg*, Washington University
(98046235) 
4:30 p.m.
Recovering The Jump in Fourier Analysis and Summability Theory.
Mark A. Pinsky*, Northwestern University
(9804219)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Partial Differential Equations and Geometry, II
Room B309, Van Vleck Hall
Organizers:
Sigurd Angenent, University of WisconsinMadison angenent@math.wisc.edu
Mikhail Feldman, University of WisconsinMadison feldman@math.wisc.edu

2:00 p.m.
A gradient flow approach quasiperiodic solutions for P.D.E's and $\Psi$D.E.'s.
Rafael de la Llave*, University of Texas at Austin
(98035109) 
3:00 p.m.
Interfaces between free boundaries and fixed boundaries.
Ivan Blank*, Rutgers University
Henrik Shahgholian, Royal Institute of Technology
(98035253) 
4:00 p.m.
Regularity and blowup analysis for Jholomorphic maps.
Changyou Wang*, University of Kentucky
(98035207) 
4:40 p.m.
Discussion

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Arrangements of Hyperplanes, II
Room B219, Van Vleck Hall
Organizers:
Daniel C. Cohen, Louisiana State University cohen@math.lsu.edu
Peter Orlik, University of WisconsinMadison orlik@math.wisc.edu
Anne Shepler, University of California Santa Cruz ashepler@math.ucsc.edu

2:00 p.m.
Topological robotics and arrangement complements.
Michael Farber, Tel Aviv University
Sergey Yuzvinsky*, University of Oregon
(98055104) 
2:30 p.m.
ATheory and real linear hyperplane arrangements.
Eric Babson, University of Washington
Helene Barcelo*, Arizona State University
Reinhard Laubenbacher, Virginia Institute of Technology
(98005302) 
3:00 p.m.
The line geometry of resonance varieties.
Michael J Falk*, Northern Arizona University
(98051204) 
3:30 p.m.
Generating functions whose denominator is a hyperplane arrangement.
Robin Pemantle*, Ohio State University
(98005173) 
4:00 p.m.
Properties of arrangement groups.
Richard Randell*, University of Iowa
(98057213) 
4:30 p.m.
A simplified CWComplex with the HomotopyType of the Complement of a Complexified Real Hyperplane Arrangement.
Ken Jewell*, Edgewood College
(98055310)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Group Cohomology and Homotopy Theory, II
Room B235, Van Vleck Hall
Organizers:
Alejandro Adem, University of WisconsinMadison adem@math.wisc.edu
Jesper Grodal, Institute for Advanced Study jg@ias.edu

2:00 p.m.
Stable homotopy theroy of $G$modules.
Jeffrey H Smith*, Purdue University
(98055245) 
2:30 p.m.
Phantom Spaces.
Wojciech Chacholski*, University of Minnesota
William G Dwyer, University of Notre Dame
Michele Intermont, Kalamazoo College
(98055244) 
3:00 p.m.
Loop orbifolds.
Ernesto Lupercio*, Univ. of Wisconsin, Madison
Bernardo Uribe, MPI, Bonn
(98055149) 
3:30 p.m.
The Bockstein Spectral Sequence of $\eta$.
Robert R. Bruner*, Wayne State University
(98055121) 
4:00 p.m.
$T$ and the cohomology of mapping spaces.
Jaume Aguadé*, UAB, Barcelona, Spain
(9805566) 
4:30 p.m.
Equivariant Universal Coefficient and Kunneth Spectral Sequences.
L G Lewis, Syracuse University
M A Mandell*, University of Chicago
(98055216)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:55 p.m.
Special Session on Geometric Methods in Differential Equations, II
Room B305, Van Vleck Hall
Organizers:
Gloria Mari Beffa, University of WisconsinMadison maribeff@math.wisc.edu
Peter Olver, University of Minnesota olver@ima.umn.edu

2:00 p.m.
Secondorder typechanging evolution PDE with firstorder intermediate equations.
Marek Kossowski, University of South Carolina
George R Wilkens*, University of Hawaii at Manoa
(9805362) 
2:30 p.m.
Generalized Symmetries and Local Conservation Laws of Massless Free Fields on Minkowski Space.
Juha Pohjanpelto*, Oregon State University
(98035261) 
3:00 p.m.
Discussion 
3:30 p.m.
Generalised Goursat Normal Form.
Peter J. Vassiliou*, University of Canberra
(98058257) 
4:00 p.m.
The Classification of Darboux Integrable Equations.
Matthew Biesecker*, Utah State University
(98035248) 
4:30 p.m.
Group actions on jet spaces and Darboux integrable PDE.
Mark Eric Fels*, Utah State University
(98035246)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Effectiveness Questions in Model Theory, II
Room B203, Van Vleck Hall
Organizers:
Charles McCoy, University of WisconsinMadison mccoy@math.wisc.edu
Reed Solomon, University of WisconsinMadison rsolomon@math.wisc.edu
Patrick Speissegger, University of WisconsinMadison speisseg@math.wisc.edu

2:00 p.m.
Limit sets and the complexity of quantifier elimination for Pfaffian expressions.
Andrei Gabrielov*, Purdue University
(9800394) 
2:30 p.m.
A Normalization Algorithm.
Daniel J. Miller*, University of Wisconsin  Madison
(98003272) 
3:00 p.m.
Effective Completeness Theorems for Modal Logics.
Suman Ganguli*, University of Michigan
Anil Nerode, Cornell University
(98003182) 
3:30 p.m.
Principal Filters of the Lattice of Computably Enumerable Vector Spaces.
Valentina S. Harizanov*, The George Washington University
(9800382) 
4:00 p.m.
The Computational Complexity of Computable Saturation.
Walker M. White*, University of Dallas
(98003313) 
4:30 p.m.
Discussion

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Ring Theory and Related Topics, II
Room B105, Van Vleck Hall
Organizers:
Don Passman, University of WisconsinMadison passman@math.wisc.edu

2:00 p.m.
Representation type of commutative noetherian rings IV: global structure.
Lawrence Sherwin Levy*, University of Wisconsin, Madison
Lee Klingler, Florida Atlantic University
(9801385) 
2:30 p.m.
Representation Type of Commutative Noetherian Rings III: Global Wildness.
Lee C. Klingler*, Florida Atlantic University
Lawrence S. Levy, University of Wisconsin
(9801381) 
3:00 p.m.
Properties of DownUp Algebras from Trees.
Ellen Kirkman, Wake Forest University
James Kuzmanovich*, Wake Forest University
(9801637) 
3:30 p.m.
Simple modules for Noetherian DownUp Algebras.
Georgia Benkart, University of Wisconsin, Madison
Ellen Kirkman*, Wake Forest University
(98016160) 
4:00 p.m.
Grade Periodic Algebras.
E L Green*, Virginia Tech
E N Marcos, University of S\~ao Paulo
R. Mart\'inezVilla, UNAM
Pu Zhang, University of Science and Technology of China
(9801632) 
4:30 p.m.
Representations of Koszul algebras.
Dan Zacharia*, Syracuse University
(98016126)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:45 p.m.
Special Session on Lie Algebras and Related Topics, II
Room B129, Van Vleck Hall
Organizers:
Georgia Benkart, University of WisconsinMadison benkart@math.wisc.edu
Arun Ram, University of WisconsinMadison ram@math.wisc.edu

2:00 p.m.
Ideals in the nilradical of a Borel subalgebra.
Eric N Sommers*, UMassAmherst
(98017140) 
3:00 p.m.
Cayley Maps for Algebraic Groups.
Nicole Lemire*, University of Western Ontario
Vladimir L. Popov, Steklov Mathematical Institute
Zinovy Reichstein, University of British Columbia
(98014269) 
4:00 p.m.
The restricted nullcone.
Jon F. Carlson, University of Georgia
Zongzhu Lin, Kansas St. University
Daniel K. Nakano*, University of Georgia
Brian J. Parshall, University of Virginia
(98017125)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Dynamical Systems, II
Room B215, Van Vleck Hall
Organizers:
Sergey Bolotin, University of WisconsinMadison bolotin@math.wisc.edu
Paul Rabinowitz, University of WisconsinMadison rabinowi@math.wisc.edu

2:00 p.m.
Arnold Diffusion.
John Mather*, Princeton University
(98037137) 
2:30 p.m.
A symplectic fixed point theorem and its applications.
Zhihong Jeff Xia*, Northwestern University
(9803777) 
3:00 p.m.
Geometrc mechanisms for instability in Hamiltonian dynamical systems.
A. Delshams, Univ. Polit. Catalunya
Rafael de la Llave*, Univ. Of Texas at Austin
Teresa M. Seara, Univ. Polit. Catalunya
(98037108) 
4:00 p.m.
Lagrangian minimizers and computing periodic orbits.
Philip L Boyland*, University of Florida
(98037138) 
4:30 p.m.
Periodic Points of Hamiltonian Surface Diffeomorphisms.
John Franks*, Northwestern University
Michael Handel, Lehman College (CUNY)
(9803765)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:45 p.m.
Special Session on Probability, II
Room B313, Van Vleck Hall
Organizers:
David Griffeath, University of WisconsinMadison griffeat@math.wisc.edu
Timo Seppalainen, University of WisconsinMadison seppalai@math.wisc.edu

2:00 p.m.
Approximating the effect of advantageous mutations by coalescents with multiple collisions.
Jason R. Schweinsberg*, Cornell University
Rick Durrett, Cornell University
(9809225) 
3:00 p.m.
Maxplus linearity for growth models.
Min Kang*, North Carolina State University
Ilie Grigorescu, University of Miami
(98060227) 
4:00 p.m.
Large Deviations of the Asymmetric Exclusion Process.
Leif H. Jensen*, Columbia University
(98060293)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Biological Computation and Learning in Intelligent Systems, II
Room B329, Van Vleck Hall
Organizers:
Shunichi Amari, RIKEN amari@brain.riken.go.jp
Amir Assadi, University of WisconsinMadison assadi@math.wisc.edu
Tomaso Poggio, Massachusetts Institute of Technology tp@ai.mit.edu

2:00 p.m.
DNA Packing in Viral Capsids.
De Witt Sumners*, Florida State University
(98092276) 
3:00 p.m.
CAD/CAM Biology.
David C Schwartz*, University of WisconsinMadison
(98092274) 
3:30 p.m.
Information Gometry of Protein Fold Space.
Hamid Eghbalnia*, University of WisconsinMadison
(98092287) 
4:00 p.m.
Computational elements of robot learning by imitation.
Aude G Billard*, University of Southern California
Stefan K Schaal, University of Southern California
(98093206) 
4:30 p.m.
Computational Mechanisms of Object Recognition in Cortex.
Maximilian Riesenhuber*, MIT
(9809250)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Combinatorics and Special Functions, II
Room B321, Van Vleck Hall
Organizers:
Richard Askey, University of WisconsinMadison askey@math.wisc.edu
Paul Terwilliger, University of WisconsinMadison terwilli@math.wisc.edu

2:00 p.m.
On the Generalized RogersRamanujan Continued Fraction.
Bruce C. Berndt*, University of Illinois at UrbanaChampaign
Ae Ja Yee, University of Illinois at UrbanaChampaign
(98033161) 
2:30 p.m.
An indeterminate moment problem involving the AlSalamChihara polynomials.
Jacob Stordal Christiansen*, University of Copenhagen
Mourad E. H. Ismail, University of South Florida
(98033209) 
3:00 p.m.
Zeta Functions of Graphs: When Number Theory Meets Graph Theory.
Audrey A. Terras*, U.C.S.D.
(98011258) 
3:30 p.m.
Eigenvalue and Dual Eigenvalue Sequences for Three Mutually Adjacent Leonard Pairs.
Brian L Hartwig*, University of Wisconsin
(98005300) 
4:00 p.m.
A transformation on the space of rational functions.
Victor H Moll*, Department of Mathematics, Tulane University
(98033150) 
4:30 p.m.
On Ramanujan's Continued Fraction for $(q^2;q^3)_{\infty}/(q;q^3)_{\infty}$.
George E Andrews, Pennsylvania State University
Bruce C Berndt, University of Illinois
Jaebum Sohn*, Ohio State University
Ae Ja Yee, University of Illinois
Alexandru Zaharescu, University of Illinois
(98033139)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Characters and Representations of Finite Groups, II
Room B119, Van Vleck Hall
Organizers:
Martin Isaacs, University of Wisconsin, Madison isaacs@math.wisc.edu
Mark Lewis, Kent State University lewis@mcs.kent.edu

2:00 p.m.
Maximal subgroups of classical groups and representation theory.
K Magaard*, Wayne State University
(98020167) 
2:30 p.m.
Block theory, branching rules, and centralizer algebras.
Harald Ellers*, Northern Illinois University
John Murray, National University of Ireland, Maynooth
(98020279) 
3:00 p.m.
Modular spin representations of symmetric and alternating groups that are irreducible over subgroups.
Alexander S. Kleshchev, University of Oregon
Pham Huu Tiep*, University of Florida
(9802095) 
3:30 p.m.
Finite psubgroups of GL(p,C) and their automorphism groups.
Jeffrey Mark Riedl*, University of Akron
(98020164) 
4:00 p.m.
An analogue of the Steinberg character for the general linear group over the integers modulo a prime power.
Peter S Campbell*, University of Alberta
(9802027) 
4:30 p.m.
Weil representations of symplectic and unitary groups over finite local rings.
Gerald Cliff, University of Alberta
Roderick Gow, University College Dublin
David McNeilly, University of Alberta
Fernando Szechtman*, University of Waterloo
(9802055)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:50 p.m.
Special Session on Optimal Geometry of Curves and Surfaces, II
Room B337, Van Vleck Hall
Organizers:
Jason H. Cantarella, University of Georgia cantarel@math.uga.edu
John M. Sullivan, University of Illinois, Urbana jms@math.uiuc.edu

2:00 p.m.
The convex hull property of noncompact hypersurfaces with positive curvature.
Stephanie Alexander*, University of Illinois at UrbanaChampaign
Mohammad Ghomi, University of South Carolina
(98053283) 
2:30 p.m.
Surfaces with connected shades.
Mohammad Ghomi*, Unversity of South Carolina
(98053205) 
3:00 p.m.
Displacement estimates for curves with curvature bounds in CAT(K) spaces.
Stephanie B Alexander, Univ. of Illinois at UrbanaChampaign
Richard L Bishop*, Univ. of Illinois at UrbanaChampaign
(98053243) 
3:30 p.m.
Projecting $(n1)$cycles to zero on $n$planes in$R^(n+1)$.
Bruce Solomon*, Indiana University
(98051273) 
4:00 p.m.
A variational method to include surface diffusion with nonvolumeconserving motion by mean curvature.
Jean E Taylor*, Rutgers University
(98035165) 
4:30 p.m.
Roulades and variational problems.
J. McCuan*, Georgia Tech
(98053148)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:20 p.m.
Special Session on Lie Groups and Their Representations, II
Room B131, Van Vleck Hall
Organizers:
R. Michael Howe, University of Wisconsin, Eau Claire hower@uwec.edu
Gail D. Ratcliff, East Carolina University ratcliffg@mail.ecu.edu

2:00 p.m.
A cocycle formula for the quaternionic discrete series.
Robert W Donley*, University of North Texas
(98022231) 
2:30 p.m.
Representations with scalar $K$types and the theta correspondence.
Annegret Paul*, Western Michigan University
(9802275) 
3:30 p.m.
Induced representations and derived functor modules.
Paul D Friedman*, Union College
(98022290)

2:00 p.m.

Saturday October 12, 2002, 2:00 p.m.4:25 p.m.
Session for Contributed Papers, II
Room B333, Van Vleck Hall

2:00 p.m.
Restricted Symmetric Spaces.
Terrell L. Hodge*, Western Michigan University
Brian J. Parshall, University of Virginia
(9801731) 
2:15 p.m.
Character formulas and realizations for some simple highest weight ${\mathfrak{gl}_n}$modules.
Victor Protsak*, University of Minnesota
(98017195) 
2:45 p.m.
Wildly ramified Galois representations and a generalization of Serre's Conjecture.
Darrin M Doud*, Brigham Young University
(98011277) 
3:00 p.m.
Noncommutative localizations and quotients for coactions of Hopf algebras.
Zoran Skoda*, Indiana University, Bloomington
(9801617) 
3:15 p.m.
Conditional Fuzzy Convergence of Sequences and Numerical Computations.
M. Burgin*, UCLA
M. Kalina, Slovak University of Technology
(9806516) 
3:45 p.m.
Failure Functions.
Devaraj Kandadai*, Mumbai , INDIA
(9801105) 
4:00 p.m.
The CamassaHolm hierarchy, finite integrable system, and algebrogeometric solution.
Zhijun Qiao*, Los Alamos National Lab
Darryl Holm, Los Alamos National Lab
(9803536) 
4:15 p.m.
On Some Results In Noetherian Rings.
C.L. Wangneo*, University of Jammu
(98000321)

2:00 p.m.

Saturday October 12, 2002, 3:00 p.m.4:50 p.m.
Special Session on Hyperbolic Differential Equations and Kinetic Theory, II
Room B325, Van Vleck Hall
Organizers:
Shi Jin, University of WisconsinMadison jin@math.wisc.edu
Marshall Slemrod, University of WisconsinMadison slemrod@math.wisc.edu
Athanassios Tzavaras, University of WisconsinMadison tzavaras@math.wisc.edu

2:00 p.m.
Discussion 
2:30 p.m.
Discussion 
3:00 p.m.
Qualitative Behavior of Solutions to Systems of Conservation Laws.
Konstantina Trivisa*, University of Maryland
(98035189) 
3:30 p.m.
Concentration and Cavitation of Density in Invicid Compressible Fluid Flow.
Chen Guiqiang, Northwestern University
Liu Hailiang*, Iowa State Univeristy
(98035192) 
4:00 p.m.
Decay of solutions to the threedimensional Euler equations with damping.
Dehua Wang*, University of Pittsburgh
(98035187)

2:00 p.m.

Saturday October 12, 2002, 5:10 p.m.6:00 p.m.
Invited Address
Singularties Of Pairs And Birational Geometry.
Room B102, Van Vleck Hall
Lawrence Ein*, University of Illinois at Chicago 
Saturday October 12, 2002, 6:00 p.m.7:00 p.m.
Department of Mathematics Reception
Lobby, Memorial Union