AMS Sectional Meeting Program by Day
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1998 Fall Western Section Meeting
Tucson, AZ, November 1315, 1998
Meeting #938
Associate secretaries:
Bernard Russo, AMS
brusso@math.uci.edu
Saturday November 14, 1998

Saturday November 14, 1998, 8:00 a.m.5:00 p.m.
Meeting Registration and AMS Book Sale and Exhibit
Lobby, Mathematics

Saturday November 14, 1998, 8:00 a.m.10:45 a.m.
Special Session on Integrable Systems and Random Matrix Theory, I
Room 312, Physics & Atmospheric Sciences
Organizers:
K. TR McLaughlin, University of Arizona
Craig A. Tracy, University of California, Davis tracy@itd.ucdavis.edu

8:00 a.m.
On the asymptotic analysis of the Fredholm determinant related to the time dependent temperature correlation function of the Heisenberg XX0 ferromagnet.
Alexander R Its*, Indiana University  Purdue University Indianapolis
(9388190)

9:00 a.m.
Fredholm Determinants,Random Matrices and Integrable Perturbations.
Mark A Adler*, Brandeis Umiversity
(9386052)

10:00 a.m.
Distribution functions for random variables .
Estelle L. Basor*, California Polytechnic State University, San Luis Obispo, CA 93407
(9388251)

Saturday November 14, 1998, 9:00 a.m.10:50 a.m.
Special Session on Geometry and Lie Groups, I
Room 501, Mathematics
Organizers:
Samuel R. Evens, University of Arizona evens@math.arizona.edu
JiangHua Lu, University of Arizona jhlu@math.arizona.edu

9:00 a.m.
A triangularity result for associated varieties of highest weight modules.
William M. McGovern*, University of Washington
(9381727)

9:40 a.m.
Singular Loci of Schubert Varieties in a Generalized Flag Variety.
James B. Carrell*, University of British Columbia
(9381486)

10:20 a.m.
Patterns, Smoothness and Rational Smoothness of Schubert Varieties.
Sara C. Billey*, MIT
(93805104)

Saturday November 14, 1998, 9:00 a.m.10:50 a.m.
Special Session on Spectral Geometry and Its Applications, I
Room 402, Mathematics
Organizers:
Xianzhe Dai, University of Southern California xdai@math.usc.edu
Leonid Friedlander, University of Arizona friedlan@math.arizona.edu

9:00 a.m.
Singular SturmLiouville theory.
Rafe Mazzeo*, Stanford University
Robert McOwen, Northeastern University
(9385819)

9:40 a.m.
Analytic torsion and Rtorsion for manifolds with boundary.
Xianzhe Dai*, UCSB and USC
Hao Fang, Princeton University
(93858121)

10:20 a.m.
Spectrum of complete noncompact manifolds.
Jiaping Wang*, Cornell University
(9385815)

Saturday November 14, 1998, 9:00 a.m.10:50 a.m.
Special Session on Mathematics and Biology, I
Room 220, Physics & Atmospheric Sciences
Organizers:
Jim Cushing, University of Arizona cushing@math.arizona.edu
Shandelle M. Henson, University of Arizona henson@math.arizona.edu

9:00 a.m.
Hamiltonian Limits and Subharmonic Resonance in Ecological Models: I. From the Pendulum \dots.
William M. Schaffer*, Department of Ecology and Evolutionary Biology and Program in Applied Mathematics, University of Arizona.
Aaron A. King, Program in Applied Mathematics, University of Arizona
(9389275)

9:30 a.m.
Hamiltonian Limits and Subharmonic Resonance in Ecological Models: II. \dots to the Lynx and the Hare.
Aaron A. King*, Program in Applied Mathematics, University of Arizona
William M. Schaffer, Department of Ecology and Evolutionary Biology and Program in Applied Mathematics, University of Arizona.
(9389276)

10:00 a.m.
Variations on the complex formation approach in modeling predator prey relations, mating, and sexual disease transmission.
Horst R. Thieme*, Arizona State University
Jinling Yang, Arizona State University
(9389237)

10:30 a.m.
How to Construct Better HighDimensional Population Models.
Yang Kuang*, ASU
(9389233)

Saturday November 14, 1998, 9:00 a.m.10:40 a.m.
Special Session on Classical and Quantum Mechanical Lattice Spin Systems, I
Room 237, Bio Sciences West
Organizers:
Tom Kennedy, University of Arizona tgk@math.arizona.edu

9:00 a.m.
Nonmeanfield behavior in finitedimensional spin glasses.
Charles M. Newman, New York University
Daniel L. Stein*, University of Arizona
(9388241)

9:35 a.m.
Phase Structure of a Lattice Model of Flux Lines.
Christian Borgs, Microsoft Research
Jennifer T. Chayes*, Microsoft Research
Christopher King, Northeastern University
Neal Madras, York University
(93882138)

10:10 a.m.
Edge states of quantum spin chains.
Bruno L Nachtergaele*, University of California, Davis
(93882105)

Saturday November 14, 1998, 9:00 a.m.10:50 a.m.
Special Session on Dynamical Systems, I
Room 208, Bio Sciences West
Organizers:
Marek Rychlik, University of Arizona rychlik@u.arizona.edu
Maciej P. Wojtkowski, University of Arizona maciejw@math.arizona.edu

9:00 a.m.
Bootstrap Estimates of Chaotic Dynamics.
Eric Kostelich*, Arizona State University
(9385844)

9:30 a.m.
Understanding renormalization.
Ricardo PerezMarco*, UCLA
(9383047)

10:00 a.m.
The spectra of nonnegative integer matrices via formal power series.
Ormes S Nicholas*, University of Texas
Ki H Kim, Alabama State University
Fred W. Roush, Alabama State University
(9381530)

10:30 a.m.
Rational attractors and irrational continua for maps in the Lozi family.
Chris Cleveland*, Adjunct
(9385822)

Saturday November 14, 1998, 9:00 a.m.10:50 a.m.
Special Session on Arithmetic Algebraic Geometry, I
Room 219, Bio Sciences West
Organizers:
Douglas Ulmer, University of Arizona ulmer@math.arizona.edu

9:00 a.m.
Lowdegree points on curves: a worked example.
Joseph L. Wetherell*, University of Southern California
(93811125)

9:30 a.m.
Arithmetic of some curves of high genus .
Pavlos Tzermias*, University of Arizona
(9381189)

10:00 a.m.
Jacobians of genus one curves.
Sang Yook An, The University of Arizona
Seog Young Kim, The University of Arizona
David C. Marshall*, The University of Arizona
Susan H. Marshall, The University of Arizona
William G. McCallum, The University of Arizona
Alexander R. Perlis, The University of Arizona
(93814134)

10:30 a.m.
Jacobians of genus one curves.
Catherine H O'Neil, Mrs*, Harvard University
(9381183)

Saturday November 14, 1998, 9:00 a.m.10:40 a.m.
Special Session on Filaments, Interfaces and Patterns, I
Room 224, Physics & Atmospheric Sciences
Organizers:
Nicholas Ercolani, University of Arizona ercolani@math.arizona.edu
Jerry Moloney, University of Arizona

9:00 a.m.
Phase field theories and material interfaces.
Chaim Charach, BenGurion Univ
Paul C Fife*, University of Utah
(9388257)

9:30 a.m.
Boundary Homogenization of Kinetic and Fluid Models for Thin Film Deposition.
Christian A Ringhofer*, Arizona State University
(93870131)

10:15 a.m.
Atomistic, Continuum and Bulk Models for Epitaxial Growth.
Russel E. Caflisch*, UCLA
(9388278)

Saturday November 14, 1998, 9:00 a.m.10:50 a.m.
Special Session on Striking the Balance:Theory, Technique, and Applications in Lower Division Mathematics Courses, I
Room 242E, Shantz
Organizers:
Joseph Watkins, University of Arizona jwatkins@math.arizona.edu

9:30 a.m.
A NonRadical Version of `Calculus Reform'.
Neal Koblitz*, University of Washington
(9389809)

10:00 a.m.
Balancing Theory and Applications in Multivariable Calculus.
William G McCallum*, University of Arizona
(93898115)

10:30 a.m.
Stirling's approximation for ln$(n!)$: An elementary proof and applications.
Keith A. Brandt*, Missouri Western State College
Anton S. Wallner, Missouri Western State College
(9389821)

Saturday November 14, 1998, 11:15 a.m.12:05 p.m.
Invited Address
Poisson geometry and some applications.
Room 201, Physics & Atmospheric Sciences
JiangHua Lu*, University of Arizona
(93853137)

Saturday November 14, 1998, 1:30 p.m.2:20 p.m.
Invited Address
On the asymptotic speed of a stochastic invasion.
Room 201, Physics & Atmospheric Sciences
Mark A. Lewis*, University of Utah
(93860140)

Saturday November 14, 1998, 3:00 p.m.4:20 p.m.
Special Session on Groups and Computation
Room 404, Physics & Atmospheric Sciences
Organizers:
Robert Beals, University of Arizona beals@math.arizona.edu

3:00 p.m.
Algorithms in Representation Theory .
Klaus M Lux*, university of arizona
(93820127)

3:30 p.m.
Algorithms for matrix groups over number fields.
Robert M Beals*, University of Arizona
(93820130)

4:00 p.m.
Discussion

Saturday November 14, 1998, 3:00 p.m.6:10 p.m.
Special Session on Geometry and Lie Groups, II
Room 501, Mathematics
Organizers:
Samuel R. Evens, University of Arizona evens@math.arizona.edu
JiangHua Lu, University of Arizona jhlu@math.arizona.edu

3:00 p.m.
Invariant Theory and Entanglement in Quantum Computing.
David Meyer, University of California, San Diego
Nolan Wallach*, University of California, San Diego
(9382294)

3:40 p.m.
Representations and deformations of Lie bialgebroid.
Arkady Vaintrob*, New Mexico State University
(93853107)

4:20 p.m.
Poisson brackets on projective spaces and trilinear forms.
Alexander Polishchuk*, Harvard University
(9381460)

5:00 p.m.
Moduli of polygons and npointed projective lines.
Philip A Foth*, Northwestern University, University of Arizona
(9381461)

5:40 p.m.
Compact weakly symmetric spaces and spherical pairs.
Hieu D Nguyen*, Rowan University
(9385311)

Saturday November 14, 1998, 3:00 p.m.4:50 p.m.
Special Session on Spectral Geometry and Its Applications, II
Room 402, Mathematics
Organizers:
Xianzhe Dai, University of Southern California xdai@math.usc.edu
Leonid Friedlander, University of Arizona friedlan@math.arizona.edu

3:00 p.m.
Inverse Scattering Problems in Twodimensional Anisotropic Media .
Gregory Eskin*, UCLA
James V Ralston, UCLA
(9383520)

3:40 p.m.
An invariant of the smooth structure related to the first eigenvalue of the Laplacian.
Leonid Friedlander*, University of Arizona
Nikolai Nadirashvili, University of Chicago
(9383599)

4:20 p.m.
On the smallscale mass concentration of modes .
John A Toth*, McGill University
(9383512)

Saturday November 14, 1998, 3:00 p.m.5:50 p.m.
Special Session on Mathematics and Biology, II
Room 220, Physics & Atmospheric Sciences
Organizers:
Jim Cushing, University of Arizona cushing@math.arizona.edu
Shandelle M. Henson, University of Arizona henson@math.arizona.edu

3:00 p.m.
Consistency and Fluctuation Theorems for Discrete Time Structured Population Models Having Demographic Stochasticity .
Joseph C Watkins*, University of Arizona
(9389256)

3:30 p.m.
From Individuals to Population Dynamics: A Method and an Example .
Wade Leitner*, University of Arizona
(9386096)

4:00 p.m.
A Stochastic ContinuousTime AgeStructured Population Model.
Edward J. Allen*, Texas Tech University
Maruful Chowdhury, Texas Tech University
(9389210)

4:30 p.m.
Estimating Mean Time to Extinction; an Overview of Some Popular Methods.
Kevin R Anderson*, Institute for Mathematics and Its Applications
Wade Leitner, Department of Mathematics
(9389231)

5:00 p.m.
A model of the population dynamics and coevolution of mutualisms.
Brian J McGill*, U of Arizona
(93892123)

5:30 p.m.
Temperature based growth/mortality model for the Mountain Pine Beetle.
Peter W White*, Tarleton State University
(9389266)

Saturday November 14, 1998, 3:00 p.m.5:15 p.m.
Special Session on Classical and Quantum Mechanical Lattice Spin Systems, II
Room 237, Bio Sciences West
Organizers:
Tom Kennedy, University of Arizona tgk@math.arizona.edu

3:00 p.m.
Hyperscaling in Percolation.
Christian Borgs*, Microsoft Research
Jennifer T Chayes, Microsoft Research
Harry Kesten, Cornell University
Joel Spencer, New York University
(93882139)

3:35 p.m.
PowerLaw Corrections to Exponential Decay of Connectivities and Correlations.
Kenneth S. Alexander*, University of Southern California
(93860102)

4:10 p.m.
Surprises in the Hydrodynamics of Driven Lattice Gases .
Gregory Eyink*, University of Arizona
(93870117)

4:45 p.m.
Status of the two dimensional nonlinear Sigma models.
Adrian Patrascioiu*, University of Arizona
Erhard Seiler, Max Planck Institut fuer Physik
(93882129)

Saturday November 14, 1998, 3:00 p.m.5:50 p.m.
Special Session on Dynamical Systems, II
Room 208, Bio Sciences West
Organizers:
Marek Rychlik, University of Arizona rychlik@u.arizona.edu
Maciej P. Wojtkowski, University of Arizona maciejw@math.arizona.edu

3:00 p.m.
Multidimensional Piecewise Smooth Expanding Maps.
William J Cowieson*, UCLA
(9385848)

3:30 p.m.
Dynamics of Anosov diffeomorphisms with small holes .
Nikolai Chernov*, University of Alabama at Birmingham
(9385850)

4:00 p.m.
Distribution of return times for rational maps.
Nicolai T A Haydn*, University of Southern California
(9385855)

4:30 p.m.
On the KolmogorovSinai entropy of the Chirikov Standard map .
Oliver R Knill*, University of Texas
(9385854)

5:00 p.m.
Chaotic billiards on surfaces of constant curvature.
Eugene Gutkin*, USC
(9385828)

5:30 p.m.
Discussion

Saturday November 14, 1998, 3:00 p.m.4:50 p.m.
Special Session on Arithmetic Algebraic Geometry, II
Room 219, Bio Sciences West
Organizers:
Douglas Ulmer, University of Arizona ulmer@math.arizona.edu

3:00 p.m.
The central derivative of certain Hecke series.
Tonghai Yang*, SUNY at Stony Brook
(9381188)

3:30 p.m.
Starktype Conjectures ``over $\Bbb Z$''.
Cristian D. Popescu*, University of Texas at Austin
(9381164)

4:00 p.m.
Isogeny Covariant Differential Modular Forms .
Chris M Hurlburt*, University of New Mexico
(9381440)

4:30 p.m.
Moduli of Vector Bundles on Curves in Characteristic p > 0.
Kirti Joshi, University of Arizona
Eugene Z Xia*, University of Arizona
(9381438)

Saturday November 14, 1998, 3:00 p.m.5:40 p.m.
Special Session on Filaments, Interfaces and Patterns, II
Room 224, Physics & Atmospheric Sciences
Organizers:
Nicholas Ercolani, University of Arizona ercolani@math.arizona.edu
Jerry Moloney, University of Arizona

3:00 p.m.
Modelling bioconvection patterns produced by swimming bacteria.
Joceline C Lega*, University of Arizona
Neil H Mendelson, University of Arizona
(93892108)

3:30 p.m.
Convolution based methods for cellular automata models.
Steven J Ruuth*, Department of Mathematics, UCLA
Barry Merriman, Department of Mathematics, UCLA
Stanley Osher, Department of Mathematics, UCLA
(93865118)

4:00 p.m.
Dynamics of axial separation in long rotating drums.
Igor S Aranson, Argonne National Laboratory
Lev S Tsimring*, InstituteUniversity of California, San Diego
(9383585)

4:45 p.m.
The stability of waves for modulation equations.
Todd M Kapitula*, University of New Mexico
(9383595)

5:15 p.m.
Singularities and Defects in Patterns Far from Threshold.
Nicholas M Ercolani*, University of Arizona
Robert Indik, University of Arizona
Alan C. Newell, University of Warwick
Thierry Passot, CNRS
(93835110)

Saturday November 14, 1998, 3:00 p.m.5:20 p.m.
Special Session on Striking the Balance:Theory, Technique, and Applications in Lower Division Mathematics Courses, II
Room 242E, Shantz
Organizers:
Joseph Watkins, University of Arizona jwatkins@math.arizona.edu

3:00 p.m.
Encouraging Effective Change within an Atmosphere of Flexibility.
John W. Hagood*, Northern Arizona University
(93898100)

3:30 p.m.
Within the Balance, A Tilt Toward Applications.
Lynne B Small*, University of San Diego
(9389881)

4:00 p.m.
Where will the applications be coming from?
Brad G. Osgood*, Stanford University
(9389818)

4:30 p.m.
The balance  a moving target: Experiences from 5 years teaching in an integrated engineering curriculum .
Matthias Kawski*, ASU
(93898112)

5:00 p.m.
Discussion

Saturday November 14, 1998, 3:00 p.m.5:45 p.m.
Special Session on Integrable Systems and Random Matrix Theory, II
Room 312, Physics & Atmospheric Sciences
Organizers:
K. TR McLaughlin, University of Arizona
Craig A. Tracy, University of California, Davis tracy@itd.ucdavis.edu

3:00 p.m.
An electrostatics model for zeros og general orthogonal polynomials.
Mourad E.H. Ismail*, University of South Florida
(9383307)

4:00 p.m.
Statistics at the Edge of the Spectrum of Wigner Random Matrices.
Yakov G Sinai, Princeton University
Alexander B Soshnikov*, California Institute of Technology
(9386008)

5:00 p.m.
Determinantal formulas for the correlation functions and the infinite symmetric group.
Alexei Borodin*, University of Pennsylvania
Grigori Olshanski, Institute for Problems of Information Transmission
(9386039)

Saturday November 14, 1998, 4:15 p.m.5:25 p.m.
Session for Contributed Papers
Room 210, Bio Sciences West

4:15 p.m.
Selected Tessellations and the Nature of the Schaffli Numbers.
C. S. Felicitas*, Pan Asian Congress of Mathematicians(American and New York Branch)
(9381401)

4:30 p.m.
Mathematics basic skills for the first three grades.
Abdullah Alharbey*, King Abdulaziz University
(9389606)

4:45 p.m.
Kernel Inspired Factorizations of Partial Differential Operators.
Alex Kasman*, MSRI
(9383529)

5:00 p.m.
The Conditional Empirical Distribution as a Decision Making Tool.
Rod A Freed*, California State University, Dominguez Hills
(9380092)

5:15 p.m.
Generalized functions and approximate solutions to the abstract Cauchy problem.
Boris Baeumer*, University of Nevada, Reno
(93844109)
Inquiries: meet@ams.org