AMS Sectional Meeting Program by Day
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1998 Spring Western Section Meeting
Davis, CA, April 2526, 1998
Meeting #934
Associate secretaries: Robert J Daverman, AMS daverman@math.utk.edu
Saturday April 25, 1998

Saturday April 25, 1998, 7:30 a.m.5:00 p.m.
Meetings Registration
Lounge, Wellman Hall

Saturday April 25, 1998, 7:30 a.m.5:00 p.m.
Exhibit and Book Sale
Lounge, Wellman Hall

Saturday April 25, 1998, 9:00 a.m.10:50 a.m.
Special Session on C*algebras and Dynamics, I
Room 202, Wellman Hall Organizers: Jerry Kaminker, Indiana UnivPurdue Univ at Indianapolis kaminker@math.iupui.edu
Ian Fraser Putnam, University of Victoria putnam@math.uvic.ca
Jack Spielberg, Arizona State University jss@math.la.asu.edu

9:00 a.m.
Dynamics of Tilings.
Charles Radin*, University of Texas
Lorenzo Sadun, University of Texas
(9345270)

9:30 a.m.
Topological Invariants for Tilings.
Alan H Forrest, IMF
John Hunton, University of Leicester
Johannes Kellendonk*, Technische Universitaet Berlin
(9342082)

10:00 a.m.
Minimal homeomorphisms with the same real coboundaries.
Nicholas S. Ormes*, University of Texas
(93458108)

10:30 a.m.
Endomorphisms and CuntzKrieger algebras.
Berndt A Brenken*, University of Calgary
(93446136)

Saturday April 25, 1998, 9:00 a.m.10:55 a.m.
Special Session on Differential Equations with Applications, I
Room 115, Wellman Hall Organizers: Sally Sailai Shao, Cleveland State University shao@math.csuohio.edu
Tatsuhiko J. Tabara, Golden Gate University ttabara@ggu.edu

9:00 a.m.
To the Asymptotic Behavior of the General Fourth Painleve Transcendent.
Alisher S Abdullayev*, National University
(9343438)

9:30 a.m.
Homotopy classes for stable patterns in a class of fourthorder Hamiltonian systems.
William D Kalies*, California Polytechnic State University
Jarek Kwapisz, Michigan State University
JanBouwe VandenBerg, University of Leiden
Robert VanderVorst, Georgia Institute of Technology
(93434109)

10:00 a.m.
Reduction of a network of voltage gated conductance equations to a onedimensional map.
Thomas LoFaro*, Washington State University
(9343432)

10:30 a.m.
Determining 3D Surfaces from 2D Radar Data.
Daniel Ostrov*, Santa Clara University
(9343535)

Saturday April 25, 1998, 9:00 a.m.10:55 a.m.
Special Session on Dualities in Mathematics and Physics, I
Room 216, Wellman Hall Organizers: Edward Frenkel, University of California, Berkeley frenkel@math.berkeley.edu
Nicolai Reshetikhin, University of California, Berkeley reshetik@math.berkeley.edu

9:00 a.m.
CalogeroMoser Systems in SeibergWitten Theory.
Eric D'Hoker*, UCLA
D. H. Phong, Columbia University
(9345153)

9:40 a.m.
Field Theory and Intersecting Branes.
Jan de Boer*, UC Berkeley
(9348164)

10:20 a.m.
Heat kernel and localization.
Kefeng Liu*, Stanford University
(9345392)

Saturday April 25, 1998, 9:00 a.m.10:45 a.m.
Special Session on Dynamical Systems and Mathematical Physics, I
Room 226, Wellman Hall Organizers: Motohico Mulase, University of California, Davis mulase@math.ucdavis.edu
Bruno L Nachtergaele, University of California, Davis bxn@math.ucdavis.edu

9:00 a.m.
Statistical mechanics and superBrownian motion.
Gordon Slade*, McMaster University
(9348260)

9:45 a.m.
A Stability Property of the Quenched State in Mean Field Spin Glass Models.
Michael Aizenman, Princeton University
Pierluigi Contucci*, Princeton University
(9348289)

10:10 a.m.
Ground states of the FalicovKimball model : a lattice Laplacian plus binary potential.
Karl Haller, University of Arizona
Tom G Kennedy*, University of Arizona
(93482110)

Saturday April 25, 1998, 9:00 a.m.10:50 a.m.
Special Session on Geometric Analysis, I
Room 119, Wellman Hall Organizers: Chikako Mese, University of Southern California mese@math.usc.edu
Richard M. Schoen, Stanford University schoen@gauss.stanford.edu

9:00 a.m.
New Examples of Selfshrinking Mean Curvature Flow.
Claire C Chan*, University of Utah
(93451117)

9:30 a.m.
Asymptotic Behavior of Cosmological Solutions of Einstein's Equations.
James A Isenberg*, University of Oregon
(93483103)

10:00 a.m.
Regularity results of some 4th order PDE.
SunYung Alice Chang*, Department of Math., UCLA
(93458139)

10:30 a.m.
Polyhedra in hyperbolic 3space.
Xiliang Bao, University of Southern California
Francis Bonahon*, University of Southern California
(93451112)

Saturday April 25, 1998, 9:00 a.m.10:50 a.m.
Special Session on The Geometry and Topology of 3manifolds, I
Room 1, Wellman Hall Organizers: Dmitry Fuchs, University of California, Davis fuchs@math.ucdavis.edu
Joel Hass, University of California, Davis hass@math.ucdavis.edu
Ramin Naimi, University of California, Davis naimi@math.ucdavis.edu
William Thurston, University of California, Davis wpt@math.ucdavis.edu

9:00 a.m.
Genuine laminations and group negative curvature.
David Gabai, Caltech
William H Kazez*, University of Georgia
(9345797)

9:30 a.m.
Foliations with good geometry.
Sergio R Fenley*, Washington University
(9345772)

10:00 a.m.
Perturbing Finite Depth Foliations.
Rachel Roberts*, Washington University
(93457111)

10:30 a.m.
The orbifold theorem.
Daryl Cooper, University of California, Santa Barbara
Craig D. Hodgson, University of Melbourne
Steven P. Kerckhoff*, Stanford University
(93457105)

Saturday April 25, 1998, 9:00 a.m.10:50 a.m.
Special Session on Graph Theory, I
Room 233, Wellman Hall Organizers: David Barnette, University of California, Davis barnette@math.ucdavis.edu

9:00 a.m.
On the total coloring of graphs embeddable in surfaces.
Yue Zhao*, Benedict College
(9340522)

9:30 a.m.
Constructing Infinite 3connected Graphs.
David Barnette, U. of California
Mar\'{\i}a Jos\'e Ch\'avez, U. de Sevilla (Dpto. Matem\'atica Aplicada I)
Luis M. Fern\'andez, U. de Sevilla (Dpto. Algebra, Computaci\'on, Geometr\'{\i}a y Topolog\'{\i}a)
Alberto M\'arquez, U. de Sevilla (Dpto. Matem\'atica Aplicada I)
Antonio Quintero, U. de Sevilla (Dpto. Algebra, Computaci\'on, Geometr\'{\i}a y Topolog\'{\i}a)
Mar\'{\i}a Trinidad Villar*, U. de Sevilla (Dpto. Algebra, Computaci\'on, Geometr\'{\i}a y Topolog\'{\i}a)
(9340551)

10:00 a.m.
Regular Honest Graphs, Isoperimetric Numbers, and Bisection of Weighted Graphs.
Noga Alon, Tel Aviv University, and Institute for Advanced Study
Peter Hamburger*, IndianaPurdue University Fort Wayne
Alexandr V. Kostochka, Institute of Mathematics Novosibirsk
(9340524)

10:30 a.m.
Matrices and Graphs.
Moshe Rosenfeld*, Pacific Lutheran University
(9340559)

Saturday April 25, 1998, 9:00 a.m.10:20 a.m.
Special Session on Nonlinear Analysis, I
Room 6, Wellman Hall Organizers: John K. Hunter, University of California, Davis hunter@math.ucdavis.edu
Blake Temple, University of California, Davis temple@itd.ucdavis.edu

9:00 a.m.
ShockWaves, Black Holes and Cosmology.
Blake Temple*, University of California, Davis
(93483159)

9:30 a.m.
The Gap Lemma and Geometric Criteria for the Instability of Viscous Shock Profiles.
Robert A. Gardner*, University of Massachusetts, Amherst
Kevin A. Zumbrun, Indiana University
(93435158)

10:00 a.m.
Riemann Problems for Multidimensional Conservation Laws .
Suncica Canic, Iowa State University
Barbara Lee Keyfitz*, University of Houston
(9343507)

Saturday April 25, 1998, 9:00 a.m.11:00 a.m.
Special Session on Nonlinear Analysis, II
Room 26, Wellman Hall Organizers: John K. Hunter, University of California, Davis hunter@math.ucdavis.edu
Blake Temple, University of California, Davis temple@itd.ucdavis.edu

9:00 a.m.
Description of singularities via the Fuchsian algorithm.
Satyanad Kichenassamy*, MaxPlanckInstitut, Leipzig
(9343513)

9:30 a.m.
Discussion

9:30 a.m.
Navier and Stokes Meet the Wavelet.
Paul Federbush*, University of Michigan
(93476157)

10:00 a.m.
An a priori bound for codimension one isometric embeddings.
Yanyan Li, Rutgers University
Gilbert Weinstein*, UAB
(9345829)

10:30 a.m.
On the Nature of the Generic Cosmological Singularity.
Beverly K Berger*, Oakland University
(9348315)

Saturday April 25, 1998, 11:10 a.m.12:00 p.m.
Invited Address
Recent Progress in Geometric Langlands Correspondence.
Room 1100, Social Sciences Building
Edward V Frenkel*, University of California, Berkeley
(9342094)

Saturday April 25, 1998, 1:50 p.m.2:40 p.m.
Invited Address
C*algebras and dynamics.
Room 1100, Social Sciences Building
Ian F Putnam*, University of Victoria
(93447107)

Saturday April 25, 1998, 3:00 p.m.5:20 p.m.
Special Session on C*algebras and Dynamics, II
Room 202, Wellman Hall Organizers: Jerry Kaminker, Indiana UnivPurdue Univ at Indianapolis kaminker@math.iupui.edu
Ian Fraser Putnam, University of Victoria putnam@math.uvic.ca
Jack Spielberg, Arizona State University jss@math.la.asu.edu

3:00 p.m.
Selfsimilarities of Poisson structures on tori.
Kentaro Mikami, Akita University
Alan Weinstein*, University of California, Berkeley
(93458100)

3:30 p.m.
Amenable groupoids.
C. AnantharamanDelaroche*, UNIVERSITE D'ORLEANS
J. Renault, UNIVERSITE D'ORLEANS
(9344641)

4:00 p.m.
Analysis on or off fractals and aspects of noncommutative geometry.
Michel L Lapidus*, University of California, Riverside, Ca
(93458124)

4:30 p.m.
Continuous graphs and C*algebras.
Valentin Deaconu*, University of Nevada, Reno
(9344695)

5:00 p.m.
$C^*$algebras of directed graphs and group actions.
Alex Kumjian*, University of Nevada, Reno
David Pask, University of Newcastle, Australia
(9344662)

Saturday April 25, 1998, 3:00 p.m.5:55 p.m.
Special Session on Differential Equations with Applications, II
Room 115, Wellman Hall Organizers: Sally Sailai Shao, Cleveland State University shao@math.csuohio.edu
Tatsuhiko J. Tabara, Golden Gate University ttabara@ggu.edu

3:00 p.m.
Mathematical analysis for a system of PDE arises from the phase field theory
W Xie*, California State Polytechnic University at Pomona
(93435135)

3:30 p.m.
Periodic Solution of a LotkaVolterra system.
ShagiDi Shih*, University of Wyoming
(93434146)

4:00 p.m.
Attractivity and time lags for linear periodic delaydifferntial equations.
Rinko Miyazaki*, Shizuoka University, Japan
(9343479)

4:30 p.m.
On the asymptotic behavior of a delay Fibonacci equation.
Yoshihiro Hamaya*, Department of Mathematical Information Science, Okayama University of Science
(9343488)

5:00 p.m.
A Dynamical Systems Result in Asymptotic Integration of Linear Differential Systems.
Sigrun I Bodine*, University of Southern California, Los Angeles, CA 90089
(93434137)

5:30 p.m.
Stokes Multipliers of a Second Order Differential Equation with a Large Parameter.
Tatsuhiko J Tabara*, Golden Gate University
(93434129)

Saturday April 25, 1998, 3:00 p.m.5:35 p.m.
Special Session on Dualities in Mathematics and Physics, II
Room 216, Wellman Hall Organizers: Edward Frenkel, University of California, Berkeley frenkel@math.berkeley.edu
Nicolai Reshetikhin, University of California, Berkeley reshetik@math.berkeley.edu

3:00 p.m.
Noncommutative geometry and M(atrix) theory.
Albert Schwarz*, Math Dept, University of California at Davis
(9348181)

3:40 p.m.
Duality in the fractional quantum Hall effect.
Hubert M Saleur*, University of Southern California
(9348256)

4:20 p.m.
Complex counterpart of abelian ChernSimons theory.
Igor B Frenkel, Yale University
Boris Khesin, University of Toronto
Andrey N Todorov*, UCSC
(9345163)

5:00 p.m.
Bispectral Duality: Higher rank and higher dimensional examples.
Alex Kasman*, Concordia University and CRM
(9343550)

Saturday April 25, 1998, 3:00 p.m.5:15 p.m.
Special Session on Dynamical Systems and Mathematical Physics, II
Room 226, Wellman Hall Organizers: Motohico Mulase, University of California, Davis mulase@math.ucdavis.edu
Bruno L Nachtergaele, University of California, Davis bxn@math.ucdavis.edu

3:00 p.m.
Asymptotics of a class of Fredholm determinants.
Craig A. Tracy, University of California, Davis avis
Harold Widom*, University of California, Santa Cruz Davis
(9344637)

3:45 p.m.
Asymptotic formulas for the determinant of a sum of finite Toeplitz and Hankel matrices.
Estelle L. Basor*, California Polytechnic State University, San Luis Obispo, CA, 93407
(9344768)

4:10 p.m.
Integrable Operators and the Asymptotics of Quantum Correlation Functions.
Alexander R Its*, Indiana UniversityPuedue University Indianapolis
(93481125)

4:55 p.m.
Deformation quantization for polynomial Poisson algebras.
Michael Penkava, University of Wisconsin
Pol Vanhaecke*, UC Davis
(93416106)

Saturday April 25, 1998, 3:00 p.m.3:50 p.m.
Special Session on Finite Groups and Representations, I
Room 7, Wellman Hall Organizers: Kenechukwu Kenneth Nwabueze, University of Brunei Darussalam nwabueze@ubd.edu.bn

3:00 p.m.
On the satisfied Models.
GunWon Lee*, Seoul National University
(9340305)

3:30 p.m.
The Grothendieck ring of permutation representations of finite groups .
Kenneth K. Nwabueze, Dr.*, University of Brunei Darussalam
(9342055)

Saturday April 25, 1998, 3:00 p.m.5:20 p.m.
Special Session on Geometric Analysis, II
Room 119, Wellman Hall Organizers: Chikako Mese, University of Southern California mese@math.usc.edu
Richard M. Schoen, Stanford University schoen@gauss.stanford.edu

3:00 p.m.
Embedded minimal ends asymptotic to the Helicoid.
David Hoffman*, MSRI
John McCuan, MSRI
(93453145)

3:30 p.m.
The concavity question for $H$graphs.
John E McCuan*, MSRI
(93453133)

4:00 p.m.
Some morse theoretic properties of GinzburgLandau vortices.
Jie Qing*, UCSC
(93435119)

4:30 p.m.
Snowballs and Reifenberg flat metric spaces.
Guy David, Universite Paris Sud
Tatiana Toro*, University of Washington
(9345191)

5:00 p.m.
Analytic torsions on manifolds with boundary.
Xianzhe Dai*, USC and UCSB
Hao Fang, UCLA
(93458101)

Saturday April 25, 1998, 3:00 p.m.5:20 p.m.
Special Session on The Geometry and Topology of 3manifolds, II
Room 1, Wellman Hall Organizers: Dmitry Fuchs, University of California, Davis fuchs@math.ucdavis.edu
Joel Hass, University of California, Davis hass@math.ucdavis.edu
Ramin Naimi, University of California, Davis naimi@math.ucdavis.edu
William Thurston, University of California, Davis wpt@math.ucdavis.edu

3:00 p.m.
Tilings.
Alberto Candel*, Caltech
(93451147)

3:30 p.m.
Kleinian length functions and the complex of curves.
Yair N Minsky*, SUNY at Stony Brook
(9345780)

4:00 p.m.
Canonical genus, free genus, and volume.
Mark Brittenham*, University of North Texas
(9345769)

4:30 p.m.
Foliation cones.
John Cantwell*, Saint Louis University
Lawrence Conlon, Washington University
(9345706)

5:00 p.m.
Harmonic measures on hyperbolic laminations .
Vadim Kaimanovich, Universite de Rennes
Mikhail Lyubich*, SUNY at Stony Brook
(9345199)

Saturday April 25, 1998, 3:00 p.m.4:50 p.m.
Special Session on Graph Theory, II
Room 233, Wellman Hall Organizers: David Barnette, University of California, Davis barnette@math.ucdavis.edu

3:00 p.m.
Vizing's Planar Graph Conjecture.
Daniel P. Sanders*, Princeton University
Yue Zhao, Benedict College
(93405114)

3:30 p.m.
Edge coloring chordal graphs with distance restrictions.
Jennifer J. Quinn*, Occidental College, Los Angeles, CA 90041
(9340552)

4:00 p.m.
Decomposing complete graphs into cycles of fixed length.
Brian Alspach*, Burnaby, British Columbia
Heather Gavlas, Grand Valley, Michigan
(9340539)

4:30 p.m.
Diagonal Flips in Planar Triangulations.
Jason Z Gao*, Carleton University
(9340575)

Saturday April 25, 1998, 3:00 p.m.5:00 p.m.
Special Session on Nonlinear Analysis, III
Room 6, Wellman Hall Organizers: John K. Hunter, University of California, Davis hunter@math.ucdavis.edu
Blake Temple, University of California, Davis temple@itd.ucdavis.edu

3:00 p.m.
The Wulff shape as the Asymptotic Limit of a Growing Crystallin Interface.
Stanley Joel Osher*, Mathematics Department, UCLA, Los Angeles, CA 900951555
Barry Lynn Merriman, Mathematics Department, UCLA, Los Angeles, CA 900951555
(9347321)

3:40 p.m.
On the hyperbolic Approximations To First Order Partial Differential Equations.
Zhouping Xin*, Courant Institute, New York University
(93435155)

4:10 p.m.
An algorithm for the computation of shear bands in granular materials.
Xabier Garaizar*, Lawrence Livermore National Laboratory
John Trangenstein, Duke University
(9343928)

4:40 p.m.
Renormalization of the Chapman Enskog expansion.
Marshall Slemrod*, Center for Math. Sci., UW Madison
(9347614)

Saturday April 25, 1998, 3:00 p.m.5:30 p.m.
Special Session on Nonlinear Analysis, IV
Room 26, Wellman Hall Organizers: John K. Hunter, University of California, Davis hunter@math.ucdavis.edu
Blake Temple, University of California, Davis temple@itd.ucdavis.edu

3:00 p.m.
The AlexandrovBakelmanPucci Inequality.
Joseph G Conlon*, U. of Michigan
Renming Song, U. of Illinois
(9343518)

3:40 p.m.
Singularly Perturbed Hodgkin Huxley Systems.
William E Fitzgibbon*, University of Houston
Mary E Parrott, University of South Florida
You Youcheng, University of South Florida
(9343508)

4:10 p.m.
Degenerate Systems of Conservation Laws.
Robin C Young*, U. Mass.
(9343527)

4:40 p.m.
On the Full Toda Flows.
Anthony M Bloch*, University of Michigan
Peter E Crouch, Arizona State University
Michael W Gekhtman, William and Mary College
(9347031)

5:10 p.m.
Bounds for heat transport in a porous layer.
Charles R. Doering*, University of Michigan
(9347612)

Saturday April 25, 1998, 3:00 p.m.4:40 p.m.
Session for Contributed Papers
Room 101, Wellman Hall

3:00 p.m.
Three Newton Polynomials.
D G Mead, University of California at Davis
S K Stein*, Univeristy of California at Davis
(9341254)

3:15 p.m.
A note on odd perfect numbers.
Susil Kumar Jena*, Brahma Kumaries
(93411121)

3:45 p.m.
Weak sharpness and continuity of the isotonic uniform projection.
Salem Sahab*, King Abdulaziz University
Robert Huotari, KFUPM
(9349325)

4:00 p.m.
The Matrix Riccati Equations and the Acceleration of Thoroughbreds.
Rod A Freed*, California State University at Dominguez Hills
(93400143)

4:15 p.m.
SnapPea PC for Windows 95/NT: program for 3dimensional hyperbolic manifolds.
A C Manoharan*, California State University, Stanislaus. Mathematics Dept.
(9345190)

4:30 p.m.
Reflecting on Magid: Undergraduate Education in Mathematics.
Danielle Mihram, University of Southern California
G. Arthur Mihram*, Princeton, NJ 08542
(93498126)
Inquiries: meet@ams.org

