AMS Sectional Meeting Full Program
Current as of Tuesday, April 12, 2005 15:10:12
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Deadlines 
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Inquiries: meet@ams.org
2000 Fall Central Section Meeting
Toronto, Ontario Canada, September 2324, 2000
Meeting #957
Associate secretaries:
Susan J Friedlander, AMS
susan@math.northwestern.edu
Saturday September 23, 2000

Saturday September 23, 2000, 8:00 a.m.4:30 p.m.
Meeting Registration
Foyer, Sandford Fleming Building

Saturday September 23, 2000, 8:00 a.m.4:30 p.m.
Exhibit and Book Sale
Room 1013, Sandford Fleming Building

Saturday September 23, 2000, 8:30 a.m.11:20 a.m.
Special Session on Commutative Algebra and Algebraic Geometry, I
Room 4171, Medical Sciences Building
Organizers:
Anthony Geramita, Queens University tony@mast.queensu.ca
William Traves, United States Naval Academy traves@usna.edu

8:30 a.m.
Uniform behavior of symbolic powers of ideals.
Lawrence Ein, University of Illinois, Chicago
Robert Lazarsfeld, University of Michigan
Karen E Smith*, Univeristy of Michigan
(95713131)

9:00 a.m.
Applications of pseudocanonical covers to tight closure problems.
Florian Enescu*, Department of Mathematics, University of Michigan
(9571399)

9:30 a.m.
Closed formulas for the core of an ideal.
Claudia Polini*, University of Oregon
(9571320)

10:00 a.m.
The Conductor of Submonoids of $\mathbb{N}^n$.
Leslie G Roberts*, Queen's University
Les Reid, Southwest Missouri State University
(95713119)

10:30 a.m.
$\mathcal{D}$modules on Smooth Toric Varieties.
Mircea Mustata, University of California, Berkeley
Gregory G Smith*, University of California, Berkeley
Harrison Tsai, Cornell University
Uli Walther, Purdue University
(95714223)

11:00 a.m.
How to compute associated primes of $D$modules.
Harrison K Tsai*, Cornell University
(95713110)

Saturday September 23, 2000, 8:30 a.m.11:15 a.m.
Special Session on Representation Theory of Infinite Dimensional Lie Algebras, I
Room 3163, Medical Sciences Building
Organizers:
Yun Gao, York University ygao@yorku.ca

8:30 a.m.
Radicals of vertex operator algebras.
Chongying Dong*, University of California, Santa Cruz
(95717152)

9:30 a.m.
Downup algebras and twoparameter quantum groups.
Sarah Witherspoon*, University of Massachusetts
Georgia Benkart, University of Wisconsin
(95716213)

10:30 a.m.
On Modules of Bounded Multiplicities.
Daniel J. Britten*, University of Windsor
Francis W. Lemire, University of Windsor
(95717339)

Saturday September 23, 2000, 8:30 a.m.11:20 a.m.
Special Session on Discrete and Applied Geometry, I
Room 3171, Medical Sciences Building
Organizers:
Asia Ivic Weiss, York University weiss@pascal.math.yorku.ca
Walter Whiteley, York University whiteley@pascal.math.yorku.ca

8:30 a.m.
Triangles that tile the sphere: some new results.
Robert J Dawson*, Saint Mary's University
(95752293)

9:00 a.m.
Matroidally rigid polytopes.
Ted Bisztriczky*, University of Calgary
(9575181)

9:30 a.m.
Separation in TotallySewn 4Polytopes (Part 1).
Wendy A FinbowSingh*, University of Calgary
Deborah OliverosBraniff, University of Calgary
(95752264)

10:00 a.m.
Separation in TotallySewn 4Polytopes (Part 2).
Wendy A FinbowSingh, University of Calgary
Deborah OliverosBraniff*, University of Calgary
(95752263)

10:30 a.m.
Discussion

11:00 a.m.
Shapes that do well in covering, tiling and packing problems.
T.Y. Lee*, University of Maryland
Doug Szajda, University of Maryland
(9575214)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Ergodic Theory and Dynamical Systems, I
Room 1105, Sandford Fleming Building
Organizers:
Andres del Junco, University of Toronto deljunco@math.toronto.edu
Blair Madore, SUNY, Potsdam madorebf@potsdam.edu

9:00 a.m.
Dynamics of measure preserving homeomorphisms.
Vidhu S Prasad*, University of Massachusetts Lowell
(9573734)

9:30 a.m.
The $T,T^{1}$process, finitary codings and weak Bernoulli.
Jeffrey E Steif*, Georgia Institute of Technology
(95737100)

10:00 a.m.
Discussion

10:30 a.m.
Centralizers and Factors of Products of Nonsingular Chacon Transformations.
Andres del Junco, University of Toronto
Cesar E. Silva*, Williams College
(95737301)

11:00 a.m.
Some questions on squarefunctions and subsequence theorems.
Mate Wierdl*, University of Memphis
(95737209)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Nonabsolute Integration, I
Room 120, Galbraith Building
Organizers:
Patrick Muldowney, University of Ulster P.Muldowney@ulst.ac.uk
Erik Talvila, University of Illinois, Urbana talvila@math.uiuc.edu

9:00 a.m.
Nonabsolute Integration in the Twentieth Century.
Peter Bullen*, University of British Columbia
(9572683)

10:00 a.m.
The Construction of Major and Minor Functions Using Gauges and Riemann Sums.
John Coffey*, Purdue University Calumet
Robert Merkovsky, Purdue University Calumet
(9572609)

10:30 a.m.
Impulsive retarded differential equations in Banach spaces via BochnerLebesgue and Henstock integrals.
M\'{a}rcia Federson*, Universidade de S\~{a}o Paulo / ICMC
Pl\'{a}cido T\'{a}boas, Universidade de S\~{a}o Paulo / ICMC
(9573410)

11:00 a.m.
Covering Theorems and Lebesgue Integration.
Peter A Loeb*, University of Illinois, ChampaignUrbana
Erik Talvila, University of Alberta
(9572648)

Saturday September 23, 2000, 9:00 a.m.10:50 a.m.
Special Session on Functional Differential Equations and Applications, I
Room 244, Galbraith Building
Organizers:
Anatoli F. Ivanov, Pennsylvania State University afi1@psu.edu
Jianhong Wu, York University wujh@pascal.math.yorku.ca

9:00 a.m.
Contracting return maps for monotone delayed feedback.
HansOtto Walther*, Universitaet Giessen
(9573428)

10:00 a.m.
Structured Population on Two Patches: Modeling Dispersal and Delay.
Joseph So*, University of Alberta
Jianhong Wu, York University
Xingfu Zou, Memorial University
(95792161)

10:30 a.m.
A RD model for agestructured population on unbounderd domaintraveling wave fronts.
Xingfu Zou*, Memorial University of Newfoundland
(9573562)

Saturday September 23, 2000, 9:00 a.m.11:30 a.m.
Special Session on Pseudodifferential Operators, Wavelet Transforms and Related Topics, I
Room 220, Galbraith Building
Organizers:
M. W. Wong, York University mwwong@pascal.math.yorku.ca

9:00 a.m.
On the BerezinToeplitz Calculus.
Lewis A Coburn*, SUNY at Buffalo
(9574706)

10:00 a.m.
The Plancherel Transform, Squareintegrability and Wigner functions.
Syed T Ali*, Concordia University, Montreal
(95720246)

11:00 a.m.
OperatorTheoretic Interpolation of Wavelets and Frames.
David R. Larson*, Texas A\&M University
(95746277)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Set Theory and SetTheoretic Topology, I
Room 4102, Sandford Fleming Building
Organizers:
Franklin D. Tall, University of Toronto tall@math.toronto.edu

9:00 a.m.
Another covering property proof via elementarysubmodels.
Zoltan T. Balogh*, Miami University, Oxford, OH 45056
(9575458)

9:30 a.m.
CH and the MooreMrowka Problem.
Erick Todd Eisworth*, University of Northern Iowa
(95754331)

10:00 a.m.
Polyadic spaces of tightness $\tau$.
Murray Bell*, University of Manitoba
(95754343)

10:30 a.m.
Locally compact Dowker spaces.
Peter J Nyikos*, University of South Carolina
(95754309)

11:00 a.m.
On spaces related to $\omega_\mu$metrizable spaces.
Jerry E Vaughan*, University of North Carolina at Greesnboro
(95754314)

Saturday September 23, 2000, 9:00 a.m.11:25 a.m.
Special Session on Computational Wavelet Analysis, I
Room 221, Galbraith Building
Organizers:
Sebastian Ferrando, Ryerson Polytechnic University ferrando@acs.ryerson.ca
Larry Kolasa, Ryerson Polytechnic University lkolasa@acs.ryerson.ca

9:00 a.m.
Wavelet analysis of seasonal longmemory time series.
Brandon J Whitcher*, EURANDOM
(9576235)

9:30 a.m.
Wavelet Analysis of Raman Spectral Data.
Tony T Cai*, Department of Statistics/Purdue University
(95762237)

10:00 a.m.
Multiple Components Representation of Functional MR images for Human Brain Mapping.
Francois G. Meyer*, university of colorado
(95792307)

10:30 a.m.
Anisitropic wavelet smoothing of functional Magnetic Resonance Imaging.
Bradley j Lucier*, Purdue University
(95765286)

11:00 a.m.
Discussion

Saturday September 23, 2000, 9:00 a.m.11:25 a.m.
Special Session on Applied Categorical Structures, I
Room 2173, Medical Sciences Building
Organizers:
Joan Wick Pelletier, York University jwpell@yorku.ca
Walter Tholen, York University walter.tholen@mathstat.yorku.ca

9:00 a.m.
Higher category theory.
Andre Joyal*, UQAM Universit\'e du Qu\'ebec \`a Montr\'eal
(95718235)

9:30 a.m.
Some absolute pullbacks and pushouts in $\boldsymbol{\Delta}$.
Myles Tierney*, Rutgers University
(9571876)

10:00 a.m.
Nerves of Bicategories: Morphisms and Simplicial Maps.
John W Duskin*, State University of New York at Buffalo
(95718198)

10:30 a.m.
Higher fundamental functors in some categories of presheaves.
Marco Grandis*, Dipartimento di Matematica, Univ. di Genova, I
(9571839)

11:00 a.m.
A higher dimensional homotopy sequence.
Marco Grandis, Universita' di Genova
Enrico Vitale*, Universite' catholique de Louvain
(9571877)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Modern Schubert Calculus, I
Room 119, Galbraith Building
Organizers:
Nantel Bergeron, York University bergeron@mathstat.yorku.ca
Frank Sottile, University of Wisconsin sottile@math.umass.edu

9:00 a.m.
Stratified spaces formed by totally positive varieties.
Sergey Fomin*, University of Michigan
Michael Z Shapiro, KTH Stockholm
(95714239)

9:30 a.m.
Connected components of real double Bruhat cells.
Andrei Zelevinsky*, Northeastern University
(95714247)

10:00 a.m.
Connections between singular loci and cohomology of Schubert Varieties.
Sara C Billey*, M.I.T.
(95705302)

10:30 a.m.
Smooth Schubert varieties in partial flag manifolds.
Vesslin Gasharov, Cornell University
Victor Reiner*, University of Minnesota
(95705173)

11:00 a.m.
Isotropic Schubert calculus and polytopes.
Nantel Bergeron, York University
Stefan Mykytiuk, York University
Frank Sottile, University of Massachusetts at Amherst
Stephanie van Willigenburg*, Cornell University
(95705206)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Analytic Number Theory, I
Room 2172, Medical Sciences Building
Organizers:
John Friedlander, University of Toronto frdlndr@math.toronto.edu
Steve Gonek, University of Rochester gonek@math.rochester.edu

9:00 a.m.
Zeta functions of an infinite family of $K3$ surfaces.
Scott D Ahlgren*, Colgate University
Ken Ono, University of Wisconsin
David Penniston, Furman University
(95711220)

9:30 a.m.
Extensions of the ChowlaSelberg formula.
Kenneth S Williams*, Carleton University
(95711150)

10:00 a.m.
Class Numbers of Binary Cubic Forms.
Michael A Bennett*, University of Illinois, UrbanaChampaign
Trevor D Wooley, University of Michigan
(95711127)

10:30 a.m.
Monochromatic Unit Fractions.
Ernest S Croot*, The University of Georgia
(95711170)

11:00 a.m.
Subconvexity bounds for Artin Lfunctions.
William Duke, Rutgers University
John B Friedlander, University of Toronto
Henryk Iwaniec*, Rutgers University
(95711145)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Nonlinear Functional Analysis, I
Room 248, Galbraith Building
Organizers:
Sankatha Singh, Memorial University of Newfoundland ssingh@morgan.ucs.mun.ca
Bruce Watson, Memorial University of Newfoundland bruce2@math.mun.ca

9:00 a.m.
Simultaneous interpolation and approximation by a class of multivariate positive operators.
Giampietro Allasia*, University of Turin
(9574747)

9:30 a.m.
On some singularity concept for kernels of nonlinear integral operators.
Carlo Bardaro*, Dipartimento di Matematica e Informatica, Universit\'a degli Studi di Perugia
(9574785)

10:00 a.m.
The attainable order of collocation solutions for weakly singular nonlinear Volterra integral equations with nonvanishing delays.
Hermann Brunner*, Memorial University of Newfoundland
(95745138)

10:30 a.m.
Recent progress on iterative methods for nonlinear pseudocontractions.
Charles Chidume*, International Centre for Theoretical Physics, Trieste, Italy
(9574743)

11:00 a.m.
Constrained saddle point theorems and eigenvalues of nonlinear operators.
Raffaele Chiappinelli*, Dipartimento di Matematica, Universita' di Siena
(9574768)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Noncommutative Geometry, I
Room 3202, Sandford Fleming Building
Organizers:
Ryszard Nest, University of Copenhagen rnest@math.ku.dk
Victor Nistor, Pennsylvania State University nistor@math.psu.edu
Boris Tsygan, Pennsylvania State University tsygan@math.psu.edu

9:00 a.m.
Homology of complete symbols and noncommutative geometry.
MoulayTahar Benameur*, Institut Desargues, Lyon, France
(95758243)

9:30 a.m.
Secondary Characteristic Classes and Cyclic Cohomology of Hopf Algebras and Algebroids.
Alexander Gorokhovsky*, University of Michigan
(95753287)

10:00 a.m.
Break

10:30 a.m.
Cyclic Cohomology of Quantum Groups.
Masoud Khalkhali*, Western Ontario
(95718249)

11:00 a.m.
On the index of perturbed Dirac Operators on Manifolds with Corners.
Paul A Loya*, Boston University
Richard B Melrose, MIT
(9575884)

Saturday September 23, 2000, 9:00 a.m.11:25 a.m.
Special Session on Probability, I
Room 305, Galbraith Building
Organizers:
Neal Madras, York University madras@pascal.math.yorku.ca
George L. O'Brien, York University obrien@yorku.ca
Thomas Salisbury, York University salt@pascal.math.yorku.ca
Donna Salopek, York University dsalopek@yorku.ca

9:00 a.m.
On the volume of the intersection of two Wiener sausages.
Frank den Hollander*, EURANDOM
(95760191)

9:45 a.m.
Idempotent probability and large deviations.
Anatolii A. Puhalskii*, University of Colorado at Denver
(95760332)

10:30 a.m.
Coalescents with simultaneous multiple collisions.
Jason R Schweinsberg*, U.C. Berkeley
(95760188)

11:00 a.m.
Incipient infinite clusters.
Antal J\'arai, Jr.*, PIMSUBC
(95760325)

Saturday September 23, 2000, 9:00 a.m.11:20 a.m.
Special Session on Operator Algebras and Operator Theory, I
Room 3201, Sandford Fleming Building
Organizers:
ManDuen Choi, University of Toronto choi@math.toronto.edu
George Elliott, University of Toronto elliott@math.toronto.edu

9:00 a.m.
Commutators of Idempotents and Invariant Subspaces.
Peter Rosenthal*, University of Toronto
(95747180)

9:30 a.m.
Hankel operators on the Bergman space and Schatten pclasses: the case where p is strictly between 1 and 2.
Jingbo Xia*, SUNY at Buffalo
(95747196)

10:00 a.m.
Weak Reflexivity for Operators.
Deguang Han*, McMaster University and University of Central Florida
(95747184)

10:30 a.m.
The BrownDouglasFillmore theorem revisited.
Peter Friis*, University of Waterloo
(95746251)

11:00 a.m.
Normal dilations of operators.
ManDuen Choi*, University of Toronto
(95747179)

Saturday September 23, 2000, 9:30 a.m.11:20 a.m.
Special Session on Hamiltonian Systems, I
Room 1101, Sandford Fleming Building
Organizers:
Lisa Jeffrey, University of Toronto jeffrey@math.toronto.edu
Velimir Jurdjevic, University of Toronto jurdj@math.toronto.edu
Boris Khesin, University of Toronto khesin@math.toronto.edu

9:30 a.m.
Symplectic Structures and Hamiltonian Dynamics on Cross Products of Lie Groups.
Anthony M Bloch*, University of Michigan
Peter E Crouch, Arizona State University
Jerrold E Marsden, California Institute of Technology
Tudor S Ratiu, Ecole Polytechnique Federale de Lausanne
(95770149)

10:00 a.m.
Reconstruction phase formulas.
Anthony D Blaom*, Vienna, Virginia
(9577071)

10:30 a.m.
Mechanisms of chaos in Hamiltonian systems: hyperbolicity and astigmatism.
Leonid Bunimovich*, Georgia Institute of Technology
(95737269)

11:00 a.m.
Lagrangian Hydrodynamics.
Steve Shkoller*, University of California, Davis
(95735210)

Saturday September 23, 2000, 11:40 a.m.12:30 p.m.
Invited Address
Group actions and Helly's Theorem.
Room 3154, Medical Sciences Building
Benson Farb*, University of Chicago
(9572002)

Saturday September 23, 2000, 2:00 p.m.2:50 p.m.
Invited Address
A brief survey of structure and classification theory for amenable C*algebras.
Room 3154, Medical Sciences Building
George Elliott*, University of Toronto

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Commutative Algebra and Algebraic Geometry, II
Room 4171, Medical Sciences Building
Organizers:
Anthony Geramita, Queens University tony@mast.queensu.ca
William Traves, United States Naval Academy traves@usna.edu

3:00 p.m.
Local equations for the toric Hilbert scheme.
Michael Stillman*, Cornell University
(95713120)

3:30 p.m.
Mod $p$ Invariants of the Cyclic group, $C_p$, of order $p$.
H. E. A. Eddy Campbell*, Queen's University
(95713341)

4:00 p.m.
Cartier Isomorphism for Toric Varieties.
Manuel Blickle*, University of Michigan
(95714176)

4:30 p.m.
Vector bundle vanishing and approximation theory.
Hal Schenck*, Northeastern University
Peter Stiller, Texas A&M University
(9571433)

5:00 p.m.
On Equations Defining Coincident Root Varieties.
Jaydeep V Chipalkatti*, Queen's University
(95714112)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Ergodic Theory and Dynamical Systems, II
Room 1105, Sandford Fleming Building
Organizers:
Andres del Junco, University of Toronto deljunco@math.toronto.edu
Blair Madore, SUNY, Potsdam madorebf@potsdam.edu

3:00 p.m.
Ergodicity and exactness of real and complex analytic maps of manifolds.
Jane M Hawkins*, University of North Carolina at Chapel Hill
(9573791)

3:30 p.m.
Some open problems and conjectures.
Vitaly Bergelson*, Ohio State University
(95737296)

4:00 p.m.
Discussion

4:30 p.m.
Oscillation and variation inequalities for singular integrals.
James Campbell, University of Memphis
Roger L Jones, De Paul University
Karin Reinhold*, University at Albany, SUNY
Mate Wierdl, University of Memphis
(95742260)

5:00 p.m.
The Exact Rate of Approximation in Ulam's Method.
Chris J Bose*, University of Victoria
Rua D Murray, University of Waikato
(9573765)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Nonabsolute Integration, II
Room 120, Galbraith Building
Organizers:
Patrick Muldowney, University of Ulster P.Muldowney@ulst.ac.uk
Erik Talvila, University of Illinois, Urbana talvila@math.uiuc.edu

3:00 p.m.
Nuclear mappings and a Riemann approach to vector valued integration.
Shizu Nakanishi*, Osaka Prefecture University
(9572813)

3:30 p.m.
On the dual of HenstockKurzweil integrable functions in n dimensions.
Tepper L. Gill, Howard University
Woodford W Zachary*, Howard University
(9572818)

4:00 p.m.
Existence Conditions for Feynman Path Integrals.
Patrick Muldowney*, University of Ulster
(9572856)

4:30 p.m.
On Continuous Major and Minor functions for the HenstockKurzweil integral.
TuoYeong Lee*, National Institute of Education, Singapore
PengYee Lee, National Institute of Education, Singapore
(9572693)

5:00 p.m.
The Refinement Integral.
Isidore Fleischer*, CRM, Universite de Montreal
(95728143)

Saturday September 23, 2000, 3:00 p.m.5:50 p.m.
Special Session on Functional Differential Equations and Applications, II
Room 244, Galbraith Building
Organizers:
Anatoli F. Ivanov, Pennsylvania State University afi1@psu.edu
Jianhong Wu, York University wujh@pascal.math.yorku.ca

3:00 p.m.
Delayed feedback and oscillations in a model for the regulation of platelet production.
Jacques B\'elair*, Universit\'e de Montr\'eal
(95792340)

4:00 p.m.
Singularities and Normal Forms for Semilinear Functional Differential Equations in Banach Spaces.
Teresa Faria*, University of Lisbon, Portugal
(9573495)

4:30 p.m.
Stability and dissipativity of semilinear timevariant functional differential equations in a Banach space.
M. I. Gil'*, Ben Gurion University of the Negev
(95734190)

5:00 p.m.
Exponential Dichotomies and the Fredholm Alternative for Partial Functional Differential Equations.
Shigui Ruan*, Dalhousie University
(95734256)

5:30 p.m.
Discussion

Saturday September 23, 2000, 3:00 p.m.5:45 p.m.
Special Session on Representation Theory of Infinite Dimensional Lie Algebras, II
Room 3163, Medical Sciences Building
Organizers:
Yun Gao, York University ygao@yorku.ca

3:00 p.m.
Principal homogeneous spaces and conjugacy Theorems.
Arturo Pianzola*, University of Alberta
(95717169)

4:00 p.m.
Generalized Witt type Lie algebras in characteristic 0.
Kaiming Zhao*, Chinese Academy of Sciences
(95717295)

5:00 p.m.
Discussion

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Pseudodifferential Operators, Wavelet Transforms and Related Topics, II
Room 220, Galbraith Building
Organizers:
M. W. Wong, York University mwwong@pascal.math.yorku.ca

3:00 p.m.
Waveletbased methods in image processing.
James S Walker*, Univ. of WisconsinEau Claire
(9574232)

4:00 p.m.
Traces of Localization Operators with Two Admissible Wavelets.
Mah Wah Wong, York University
Zhaohui Zhang*, York University
(95747151)

4:30 p.m.
Parametrizations of paraunitary matrices associated with symmetric tight wavelet frames.
Qingtang Jiang*, University of Alberta
(95742261)

5:00 p.m.
Microlocal Analysis with Multiwavelets.
Ryuichi Ashino, Prof. Osaka Kyoiku University
Christopher Heil, Prof., Georgia Institute of Technology
Michihiro Nagase, Prof., Osaka University
R\'emi Vaillancourt*, Prof., Universit\'e d'Ottawa
(95742259)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Set Theory and SetTheoretic Topology, II
Room 4102, Sandford Fleming Building
Organizers:
Franklin D. Tall, University of Toronto tall@math.toronto.edu

3:00 p.m.
Forcing Many Positive Polarized Partition Relations Below the Continuum.
Saharon Shelah, Hebrew University
Lee J Stanley*, Lehigh University
(95703322)

3:30 p.m.
A partition relation for triples for nonspecial partial orders.
Albin L Jones*, Kenyon College
(95705304)

4:00 p.m.
Which spaces have a coarser connected Hausdorff topology?
William Fleissner, University of Kansas
Jack Porter, University of Kansas
Judith Roitman*, University of Kansas
(95754102)

4:30 p.m.
Variations of topological spaces due to Steve Watson.
Koichi Tsuda*, Ehime University
(9575436)

5:00 p.m.
Combinatorics of games on $\omega$.
Christopher C. Leary*, SUNY Geneseo
(95703345)

Saturday September 23, 2000, 3:00 p.m.5:25 p.m.
Special Session on Computational Wavelet Analysis, II
Room 221, Galbraith Building
Organizers:
Sebastian Ferrando, Ryerson Polytechnic University ferrando@acs.ryerson.ca
Larry Kolasa, Ryerson Polytechnic University lkolasa@acs.ryerson.ca

3:00 p.m.
Nonuniform sampling in multiply generated shiftinvariant subspaces of $L_p(R^d)$.
Akram Aldroubi*, Vanderbilt University
Qiyu Sun, University of Singapore
WaiShing Tang, University of Singapore
(95742175)

3:30 p.m.
Wavelet in Integral Equation and Finite Difference Time Domain Methods.
Jaideva C Goswami*, Schlumberger Oilfield Services
Richard E Miller, Texas A\&M University
Robert D Nevels, Texas A\&M University
(95741232)

4:00 p.m.
The Design of Smooth Wavelet Tight Frames with Zero Moments.
Ivan W Selesnick*, Polytechnic University, New York
(95765224)

4:30 p.m.
On a perturbed Haar wavelet.
Richard A. Zalik*, Auburn University
(95742276)

5:00 p.m.
A Characterization of Wavelet Convergence in Sobolev Spaces.
Louise A. Raphael*, Howard University
Mark A. Kon, Boston University
(95742338)

Saturday September 23, 2000, 3:00 p.m.5:25 p.m.
Special Session on Applied Categorical Structures, II
Room 2173, Medical Sciences Building
Organizers:
Joan Wick Pelletier, York University jwpell@yorku.ca
Walter Tholen, York University walter.tholen@mathstat.yorku.ca

3:00 p.m.
Relating realizability using sheaves.
Steve Awodey*, Carnegie Mellon University
Andrej Bauer, Carnegie Mellon University
Dana S Scott, Carnegie Mellon University
(9571859)

3:30 p.m.
Relative and Modified Relative Realizability.
Lars Birkedal*, The IT University of Copenhagen
Jaap van Oosten, Dept. of Mathematics, Utrecht University
(9571851)

4:00 p.m.
Certain spans of sketches model problems of complexity NP.
David B Benson*, Washington State University
(95768123)

4:30 p.m.
Monads and Structure.
John L. MacDonald*, University of British Columbia
(9571861)

5:00 p.m.
Modelling a sketch in an object in a 2category.
Michael Johnson, Macquarie University
Robert Rosebrugh, Mount Allison University
R. J. Wood*, Dalhousie University
(95718214)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Modern Schubert Calculus, II
Room 119, Galbraith Building
Organizers:
Nantel Bergeron, York University bergeron@mathstat.yorku.ca
Frank Sottile, University of Wisconsin sottile@math.umass.edu

3:00 p.m.
Descentcycling in Schubert calculus.
Allen I Knutson*, U. C. Berkeley
(95705236)

3:30 p.m.
A LittlewoodRichardson rule for multiplying Schur polynomials by certain Schubert polynomials.
Mikhail Kogan*, Northeastern University
(95705297)

4:00 p.m.
Break

4:30 p.m.
Pieri's Formula for the $T$Equivariant Cohomology of the Flag Variety.
Shawn A Robinson*, University of North Carolina at Chapel Hill
(95722312)

5:00 p.m.
A LittlewoodRichardson rule for the $K$theory of Grassmannians.
Anders S Buch*, MIT
(95714197)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Discrete and Applied Geometry, II
Room 3171, Medical Sciences Building
Organizers:
Asia Ivic Weiss, York University weiss@pascal.math.yorku.ca
Walter Whiteley, York University whiteley@pascal.math.yorku.ca

3:00 p.m.
Spaces of affine configurations of flats; their polyhedral structure.
Javier Bracho*, Instituto de Matematicas, UNAM
(95752317)

3:30 p.m.
"Open Questions in Tiling".
Chaim GoodmanStrauss*, University of Arkansas
(95752310)

4:00 p.m.
Minimal generically rigid subgraphs of gridlike triangulated tori.
Camille C Mittermeier*, York University
(95752284)

4:30 p.m.
FirstOrder Rigidity in CayleyKlein Geometries.
Franco V Saliola*, York University
Walter J Whiteley, York University
(95752290)

5:00 p.m.
A Partial Extension of the MaxwellCremona Correspondence to Spatial Frameworks.
Robert M Erdahl, Queen's
Konstantin Rybnikov*, Cornell
(95752318)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Hamiltonian Systems, II
Room 1101, Sandford Fleming Building
Organizers:
Lisa Jeffrey, University of Toronto jeffrey@math.toronto.edu
Velimir Jurdjevic, University of Toronto jurdj@math.toronto.edu
Boris Khesin, University of Toronto khesin@math.toronto.edu

3:00 p.m.
Bending flows of polygonal linkages in $E^3$, $H^3$, and $S^3$.
Thomas I Treloar*, University of Maryland
(95753245)

3:30 p.m.
Convex functions on symmetric spaces and the geometric invariant theory of configuration spaces of weighted points of flag manifolds.
John James Millson*, University of Maryland
(95753212)

4:00 p.m.
Euler angles and timeoptimal factorizations in SO(3).
Dirk Mittenhuber*, TU Darmstadt
(95749244)

4:30 p.m.
Connections along curves, parallel translations, and the nonsmooth maximum principle of optimal control theory.
Hector J.. Sussmann*, Rutgers, the State University of New Jersey
(95749171)

5:00 p.m.
The Hamiltonian Seifert Conjecture.
Viktor L Ginzburg*, UC Santa Cruz
(95737137)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Analytic Number Theory, II
Room 2172, Medical Sciences Building
Organizers:
John Friedlander, University of Toronto frdlndr@math.toronto.edu
Steve Gonek, University of Rochester gonek@math.rochester.edu

3:00 p.m.
Computing Maass forms.
David W Farmer*, Bucknell University
Stefan Johansson, IAS
(95711203)

3:30 p.m.
Systems of Additive Forms over $p$Adic Fields.
Michael P Knapp*, University of Rochester
(95711211)

4:00 p.m.
An Asymptotic Estimate Related to Selberg's Sieve II.
Dan A. Goldston, San Jose State University
Sidney W. Graham*, Central Michigan University
(95711230)

4:30 p.m.
A special type of Diophantine equation and its application.
Gang Yu*, Department of Mathematics, University of Michigan
(95711303)

5:00 p.m.
Simple arithmetic methods which give good (and effective) elementary prime number estimates simultaneous with equivalents to the P.N.T.
Edward A Bertram*, Mathematics Dept.,University of Hawaii at Manoa,Honolulu,Hawaii
(95711178)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Nonlinear Functional Analysis, II
Room 248, Galbraith Building
Organizers:
Sankatha Singh, Memorial University of Newfoundland ssingh@morgan.ucs.mun.ca
Bruce Watson, Memorial University of Newfoundland bruce2@math.mun.ca

3:00 p.m.
Application of Baire Category Techniques in Approximation Theory.
Francesco de Blasi*, Department of Mathematics, Universita di Roma 2
(95747139)

3:30 p.m.
Birkhoff Interpolation on Some Perturbed Roots of Unity.
Hanuman Prasad Dikshit*, Madhya Pradesh Bhoj (Open) University
(95741141)

4:00 p.m.
Discussion

4:30 p.m.
Functions without exceptional family of elements and the solvability of variational inequalities on unbounded sets.
Gheorghe Isac*, Royal Military College of Canada
M. G. Cojocaru, Queen's University
(9574937)

5:00 p.m.
On Some Complementarity Problems.
Jinlu Li*, Department of Mathematics, Shawnee State University
(95747142)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Noncommutative Geometry, II
Room 3202, Sandford Fleming Building
Organizers:
Ryszard Nest, University of Copenhagen rnest@math.ku.dk
Victor Nistor, Pennsylvania State University nistor@math.psu.edu
Boris Tsygan, Pennsylvania State University tsygan@math.psu.edu

3:00 p.m.
A descent theorem in the Ktheory of Banach algebras.
Max Karoubi*, University Paris 7
(95719126)

3:30 p.m.
Equivariant Chern Character.
Paul Frank Baum*, Penn State University
(95719134)

4:00 p.m.
Break

4:30 p.m.
On the BaumConnes conjecture.
Nigel Higson*, Penn State
(95719285)

Saturday September 23, 2000, 3:00 p.m.5:10 p.m.
Special Session on Probability, II
Room 305, Galbraith Building
Organizers:
Neal Madras, York University madras@pascal.math.yorku.ca
George L. O'Brien, York University obrien@yorku.ca
Thomas Salisbury, York University salt@pascal.math.yorku.ca
Donna Salopek, York University dsalopek@yorku.ca

3:00 p.m.
Interacting particle systems modelling epidemics.
Rinaldo B Schinazi*, University of Colorado at Colorado Springs
(9576087)

3:45 p.m.
Hitting properties of the random string.
Carl E Mueller*, University of Rochester
Roger Tribe, University of Warwick
(95760147)

4:30 p.m.
Critical Phenomena for Hierarchical Random Walks.
Donald A. Dawson*, Carleton University
(95760193)

Saturday September 23, 2000, 3:00 p.m.5:20 p.m.
Special Session on Operator Algebras and Operator Theory, II
Room 3201, Sandford Fleming Building
Organizers:
ManDuen Choi, University of Toronto choi@math.toronto.edu
George Elliott, University of Toronto elliott@math.toronto.edu

3:00 p.m.
Extremely amenable groups.
Thierry Giordano*, University of Ottawa
Vladimir Pestov, Victoria University of Wellington
(95722288)

3:30 p.m.
Cyclic homology of convolution algebras of padic groups.
Victor Nistor*, Penn State
(95719136)

4:00 p.m.
Differential Calculus on Quantum Groups and Cyclic Cohomolgy.
Masoud Khalkhali*, Western Ontario
(95747250)

4:30 p.m.
Continuous fields of C*algebras, boundary value problems and index theorems.
Ryszard Nest*, Copenhagen University
(95758280)

5:00 p.m.
The Noncommutative Curvature Invariant.
David Kribs*, University of Waterloo
(95747326)

Saturday September 23, 2000, 3:00 p.m.4:40 p.m.
Session for Contributed Papers
Room 304, Galbraith Building

3:00 p.m.
Laplace Transforms and American Call Options.
Roland Mallier*, University of Western Ontario
Ghada Alobaidi, University of Western Ontario
(9574457)

3:15 p.m.
Random walks on wreath products of groups.
Clyde H Schoolfield*, Harvard University
(95760222)

3:30 p.m.
Minimum Feedback Arc Sets of Tournaments.
Darren A. Narayan*, Rochester Institute of Technology
(95705234)

3:45 p.m.
Geometry of modulus spaces.
Roshdi R. Khalil*, University of jordan
Deeb m Hussein, Univ.of jordan
Wael m Amin, univ.of jordan
(9574608)

4:00 p.m.
The changing role of discrete mathematics in the undergraduate curriculum. Preliminary report.
Diane M Spresser*, National Science Foundation
(95797153)

4:30 p.m.
Some Results On Splitting The Powers Of Integers.
Susil K. Jena*, Bhubaneswar, Orissa, India
(95711321)

Saturday September 23, 2000, 6:00 p.m.6:50 p.m.
Erd\H os Memorial Lecture
New ways to look at quadratic forms.
Auditorium, Convocation Hall
John H. Conway*, Princeton University
(9570005)
Sunday September 24, 2000

Sunday September 24, 2000, 8:00 a.m.12:00 p.m.
Registration
Foyer, Sandford Fleming Building

Sunday September 24, 2000, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Room 1013, Sandford Fleming Building

Sunday September 24, 2000, 8:30 a.m.11:20 a.m.
Special Session on Commutative Algebra and Algebraic Geometry, III
Room 4171, Medical Sciences Building
Organizers:
Anthony Geramita, Queens University tony@mast.queensu.ca
William Traves, United States Naval Academy traves@usna.edu

8:30 a.m.
Level Artin algebras: components of ${\mathrm{LEVALG(T)}}$.
Anthony A. Iarrobino, Jr.*, Mathematics Department, Northeastern University
(95713168)

9:00 a.m.
Gorenstein Ideals of Embedding Codimension Four.
Anthony Iarrabino, Northeastern University
Hema Srinivasan*, University of MissouriColumbia
(95713299)

9:30 a.m.
Conjectures on the Hilbert function of multiple points.
Karen A. Chandler*, University of Notre Dame
(95714306)

10:00 a.m.
Polarization and Syzygies of Multigraded modules.
Hara Charalambous*, University at Albany, SUNY
(95713160)

10:30 a.m.
Resolutions of subsets of finite sets of points in projective space.
Steven P. Diaz*, Syracuse University
Geramita V. Anthony, Queen's University
Migliore C. Juan, University of Notre Dame
(95714103)

11:00 a.m.
Syzygies, Euclidean Algorithm and Fractals.
RagnarOlaf Buchweitz*, Dept. of Math., Univ. of Toronto
(95713281)

Sunday September 24, 2000, 8:30 a.m.11:15 a.m.
Special Session on Representation Theory of Infinite Dimensional Lie Algebras, III
Room 3163, Medical Sciences Building
Organizers:
Yun Gao, York University ygao@yorku.ca

8:30 a.m.
Root multiplicities of the indefinite KacMoody algebra $HA_n^{(1)}$.
Kailash C. Misra*, North Carolina State University
(9571779)

9:30 a.m.
Irreducible modules for the generalized Virasorotoroidal Lie algebras.
Shaobin Tan*, Department of Mathematics, Xiamen University
(95717242)

10:30 a.m.
KacMoody groups and prescribed Gauss decompositions.
Jun Morita*, University of Tsukuba
(95717228)

Sunday September 24, 2000, 8:30 a.m.11:20 a.m.
Special Session on Pseudodifferential Operators, Wavelet Transforms and Related Topics, III
Room 220, Galbraith Building
Organizers:
M. W. Wong, York University mwwong@pascal.math.yorku.ca

8:30 a.m.
Gabor Expansions in $L^p$.
Karlheinz Gr\"ochenig, University of Connecticut
Christopher Heil*, Georgia Tech
(95742229)

9:30 a.m.
Localization operators on the WeylHeisenberg group and the Bargmann transform.
Sid C Scull*, York University
(95743195)

10:00 a.m.
WeylHeisenberg dual frames and operator algebras.
JeanPierre Gabardo*, McMaster University
Deguang Han, McMaster University
(95742192)

10:30 a.m.
A Collection of Frames.
Keith F Taylor*, University of Saskatchewan
(9574327)

11:00 a.m.
Classifying certain irregular WeylHeisenberg frames.
Peter G. Casazza*, University of Missouri
Ole Christensen, Technical University of Denmark
(95743104)

Sunday September 24, 2000, 8:30 a.m.11:20 a.m.
Special Session on Discrete and Applied Geometry, III
Room 3171, Medical Sciences Building
Organizers:
Asia Ivic Weiss, York University weiss@pascal.math.yorku.ca
Walter Whiteley, York University whiteley@pascal.math.yorku.ca

8:30 a.m.
MinimumTurn Milling.
Erik D Demaine*, University of Waterloo
(95752300)

9:00 a.m.
Recent Results on Reconfiguring Polygonal Chains in Space.
Michael Soss, McGill University
Godfried T Toussaint*, McGill University
(95751257)

9:30 a.m.
Flattening Polyhedra.
Erik D Demaine, University of Waterloo
Martin L Demaine, University of Waterloo
Anna Lubiw*, University of Waterloo
(95752292)

10:00 a.m.
Rigidity of pseudotriangulations.
Ileana Streinu*, Smith College
(95752124)

10:30 a.m.
Daisy Structure in Desarguesian Projective Planes.
Gabriela AraujoPardo*, Instituto de Matematicas,UNAM.
(9570572)

11:00 a.m.
Priority Scheduling: an Application for the Permutahedron.
Ethan D. Bolker*, University of Massachusetts  Boston
(95752207)

Sunday September 24, 2000, 8:30 a.m.11:20 a.m.
Special Session on Analytic Number Theory, III
Room 2172, Medical Sciences Building
Organizers:
John Friedlander, University of Toronto frdlndr@math.toronto.edu
Steve Gonek, University of Rochester gonek@math.rochester.edu

8:30 a.m.
Properties of certain character analogues of the Dedekind sum.
Jeffrey L Meyer*, Syracuse University
(95711116)

9:00 a.m.
On the second moment of symetric square $L$ functions.
Philippe G. Michel*, IUF and Univ. Montpellier II
(95711166)

9:30 a.m.
qseries identities and certain Lfunctions.
Ken Ono*, University of Wisconsin
(9571141)

10:00 a.m.
Dedekind cotangent sums.
Matthias Beck*, SUNY Binghamton
(9571107)

10:30 a.m.
Slimmer exceptional sets in Waring's problem.
Trevor D Wooley*, University of Michigan
(95711162)

11:00 a.m.
Zeta Spirals.
Steve M. Gonek, University of Rochester
Hugh L. Montgomery*, University of Michigan
(95711248)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Ergodic Theory and Dynamical Systems, III
Room 1105, Sandford Fleming Building
Organizers:
Andres del Junco, University of Toronto deljunco@math.toronto.edu
Blair Madore, SUNY, Potsdam madorebf@potsdam.edu

9:00 a.m.
Equipartition of interval partitions and an application to number theory.
Karma Dajani, Utrecht University
Adam Fieldsteel*, Wesleyan University
(95728202)

9:30 a.m.
Positive operators in $L^1$, cocycles, and the mean ergodic theorem.
Isaac Kornfeld*, North Dakota State University
(95737122)

10:00 a.m.
Discussion

10:30 a.m.
Discussion

11:00 a.m.
$T,T^{1}$endomorphisms entropy and Kakutani equivalence.
Deborah Heicklen, UC Berkeley
Christopher Hoffman, U. of Washington
Daniel Rudolph*, U. of Maryland
(95737283)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Nonabsolute Integration, III
Room 120, Galbraith Building
Organizers:
Patrick Muldowney, University of Ulster P.Muldowney@ulst.ac.uk
Erik Talvila, University of Illinois, Urbana talvila@math.uiuc.edu

9:00 a.m.
The use on nonabsolute integration in the theory of stochastic processes.
Ralph Henstock*, University of Ulster
(9572864)

9:30 a.m.
Nonabsolutely convergent Poisson integrals.
Erik O Talvila*, University of Alberta
(95726315)

10:00 a.m.
Nonabsolute integration in BlackScholes pricing.
Patrick Muldowney, University of Ulster
Wojciech Wojdowski*, Technical University of Lodz
(9572873)

10:30 a.m.
Abstract Derivation Bases.
Brian S Thomson*, Simon Fraser University
(95728187)

11:00 a.m.
A nonabsolutely convergent PUintegral.
Giuseppa Riccobono*, UNIVERSITA' DI PALERMO
(95726227)

Sunday September 24, 2000, 9:00 a.m.10:50 a.m.
Special Session on Functional Differential Equations and Applications, III
Room 244, Galbraith Building
Organizers:
Anatoli F. Ivanov, Pennsylvania State University afi1@psu.edu
Jianhong Wu, York University wujh@pascal.math.yorku.ca

9:00 a.m.
On the merits of a diagram from functional differential equations.
John Haddock*, University of Memphis
(95734337)

10:00 a.m.
A generalized Lefschetz fixed point theorem and symbolic dynamics in delay equations.
Bernhard LaniWayda*, Mathematical Institute, University of Giessen (Germany)
Roman Szrednicki, Institute of Mathematics, Jagiellonian University
(9573415)

10:30 a.m.
Monotone Iteration from discontinuous supersub solutions and travelling waves.
Q. Lan*, York University
(95734335)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Set Theory and SetTheoretic Topology, III
Room 4102, Sandford Fleming Building
Organizers:
Franklin D. Tall, University of Toronto tall@math.toronto.edu

9:00 a.m.
The Topology of the Uniform Ultrafilters.
Kenneth Kunen*, University of Wisconsin
(95754254)

9:30 a.m.
Normal Subspaces of Products of Ordinals.
William G Fleissner*, University of Kansas
(95754181)

10:00 a.m.
Generalizations of Totally Paracompact Spaces.
John E Porter*, Auburn University
Gary Gruenhage, Auburn University
(9575463)

10:30 a.m.
Covering $\omega^\omega$ by special Cantor sets.
Gary Gruenhage*, Auburn University
Ronnie Levy, George Mason University
(95703298)

11:00 a.m.
Ladder systems and subsets of $\omega_1\times\omega_1$.
Paul J. Szeptycki*, York University
Erick Todd Eisworth, University of Northern Iowa
(95754344)

Sunday September 24, 2000, 9:00 a.m.11:25 a.m.
Special Session on Computational Wavelet Analysis, III
Room 221, Galbraith Building
Organizers:
Sebastian Ferrando, Ryerson Polytechnic University ferrando@acs.ryerson.ca
Larry Kolasa, Ryerson Polytechnic University lkolasa@acs.ryerson.ca

9:00 a.m.
Wavelets in some biological problems.
Carlos E D'Attellis*, Univ. Favaloro and Buenos Aires
Vladimir D Flores, Univ. Favaloro and Buenos Aires
Silvia V Gigola, Univ. FavaloroUTN and Buenos Aires
Gustavo A Hirchoren, Univ. FavaloroUTN and Buenos Aires
Melina Rapacioli, Universidad Favaloro
Alicia Tinnirello, Universidad Tecnológica NacionalRosario
Raquel Voget, Universidad Tecnológica NacionalRosario
(9579298)

9:30 a.m.
Analysis of the edge effects in local Fourier and brushlet dictionaries.
Brons M Larson, Department of Mathematics, University of California, Davis
Naoki Saito*, Department of Mathematics, University of California, Davis
(95742316)

10:00 a.m.
Vibration Analysis and Modelling Using Gaussian Wavelet Algorithm.
Gaoyong Luo*, Buckinghamshire Chilterns University College
David Osypiw, Buckinghamshire Chilterns University College
Mark Irle, Buckinghamshire Chilterns University College
(95765121)

10:30 a.m.
An adaptive wavelet method for calculating turbulent flow in complex geometries.
Nicholas KR Kevlahan*, Department of Mathematics and Statistics, McMaster University
Oleg Vasilyev, Department of Mechanical Engineering, University of Missouri atColumbia
Abdessadek Cherhabili, Department of Mathematics and Statistics, McMaster University
(95765221)

Sunday September 24, 2000, 9:00 a.m.11:25 a.m.
Special Session on Applied Categorical Structures, III
Room 2173, Medical Sciences Building
Organizers:
Joan Wick Pelletier, York University jwpell@yorku.ca
Walter Tholen, York University walter.tholen@mathstat.yorku.ca

9:00 a.m.
Dominances and Spread Completions.
Marta C Bunge*, McGill University, Department of Mathematics and Statistics
(95718140)

9:30 a.m.
A summary report on the state of our knowledge of weak higher dimensional categories.
Michael Makkai*, McGill University
(95718157)

10:00 a.m.
Game theory revisited: categorical proof theories for games.
J. Robin B. Cockett*, University Of Calgary
(9571830)

10:30 a.m.
Open problems on finiteness and their counting measures.
MbilaMambu Mawanda*, Roma, LESOTHO
(95718204)

11:00 a.m.
Toposes and Continuum Microphysics.
F. William Lawvere*, SUNY Buffalo
(9571819)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Modern Schubert Calculus, III
Room 119, Galbraith Building
Organizers:
Nantel Bergeron, York University bergeron@mathstat.yorku.ca
Frank Sottile, University of Wisconsin sottile@math.umass.edu

9:00 a.m.
Equivariant cohomology and regular ${\mathfrak B}$actions actions.
James B. Carrell*, Univ. of B. C.
Michel Brion, Univ. de Grenoble
(95714215)

9:30 a.m.
On Schubert Calculus in Symplectic Geometry.
Rebecca F Goldin*, University of Maryland
(95751262)

10:00 a.m.
Break

10:30 a.m.
Positivity in equivariant Schubert calculus.
William Graham*, University of Georgia
(95714311)

11:00 a.m.
Gr\"obner geometry of formulae for (double) Schubert polynomials.
Allen I. Knutson, UC Berkeley
Ezra N. Miller*, MIT
(95714270)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Hamiltonian Systems, III
Room 1101, Sandford Fleming Building
Organizers:
Lisa Jeffrey, University of Toronto jeffrey@math.toronto.edu
Velimir Jurdjevic, University of Toronto jurdj@math.toronto.edu
Boris Khesin, University of Toronto khesin@math.toronto.edu

9:00 a.m.
Persistence of extremal relative equilibria in symmetric hamiltonian systems.
Eugene Lerman, University of Illinois at UrbanaChampaign
James Montaldi, Institut Non Lineaire de Nice
Tadashi Tokieda*, Universite du Quebec a Montreal
(95737253)

9:30 a.m.
Exact solutions to plasma equilibrium equations.
Oleg I Bogoyavlenskij*, Queen's University, Kingston, Canada
(95776294)

10:00 a.m.
The Transversal Relative Equilibria of a Hamiltonian System with Symmetry.
George W Patrick*, University of Saskatchewan
Mark Roberts, University of Warwick
(95770238)

10:30 a.m.
Gauge conservation laws in nonholonomic systems.
Larry Bates*, University of Calgary
(95758327)

11:00 a.m.
Almost Poisson Spaces in Mechanics.
Jedrzej Sniatycki*, University of Calgary
(95770144)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Nonlinear Functional Analysis, III
Room 248, Galbraith Building
Organizers:
Sankatha Singh, Memorial University of Newfoundland ssingh@morgan.ucs.mun.ca
Bruce Watson, Memorial University of Newfoundland bruce2@math.mun.ca

9:00 a.m.
Recent results on fixed points of multivalued contractive maps and isometries.
Teck C Lim*, George Mason University
(9574723)

9:30 a.m.
Transversality Conditions for Bifurcation: an Elementary Approach.
Mario Martelli*, Claremont McKenna College
Gareguin Mikaelian, University of California Irvine
Suzanne Sindi, California State University Fullerton
(95747167)

10:00 a.m.
HAUSDORFF STRONG UNIQUENESS OF BEST SIMULTANEOUS APPROXIMATION.
D. V. Pai*, Indian Institute of Technology
Indira K. Pai, Indian Institute of Technology
(95747201)

10:30 a.m.
The KKM Principle Implies Many Known Fixed Point Theorems.
Sehie Park*, Seoul National Univ., Seoul 151742, KOREA
(9574746)

11:00 a.m.
Finding common fixed points of a family of nonexpansive mappings by iteration.
Billy E Rhoades*, Indiana University
(95747133)

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Noncommutative Geometry, III
Room 3202, Sandford Fleming Building
Organizers:
Ryszard Nest, University of Copenhagen rnest@math.ku.dk
Victor Nistor, Pennsylvania State University nistor@math.psu.edu
Boris Tsygan, Pennsylvania State University tsygan@math.psu.edu

9:00 a.m.
Quantum String Topology.
Alexander A Voronov*, Michigan State University
(95758282)

9:30 a.m.
Ainfinity constraint and classical YangBaxter equation.
Alexander Polishchuk*, Boston University
(9571489)

10:30 a.m.
Some recent applications of operads.
Dmitry Tamarkin*, Harvard University
(95753279)

11:00 a.m.
String Topology of Manifolds.
Dennis Sullivan*, Graduate School at CUNY
(95754342)

Sunday September 24, 2000, 9:00 a.m.11:25 a.m.
Special Session on Probability, III
Room 305, Galbraith Building
Organizers:
Neal Madras, York University madras@pascal.math.yorku.ca
George L. O'Brien, York University obrien@yorku.ca
Thomas Salisbury, York University salt@pascal.math.yorku.ca
Donna Salopek, York University dsalopek@yorku.ca

9:00 a.m.
Dynamical sensitivity of randomness.
Itai Benjamini, The Weizmann Institute of Science
Olle Haggstrom, Chalmers University of Technology
Yuval Peres, UC Berkeley and Hebrew University
Jeffrey E Steif*, Georgia Institute of Technology
(95760101)

9:45 a.m.
Isoperimetric Constants and Percolation.
Russell D Lyons*, Indiana University
(9576080)

10:30 a.m.
On the Critical Behavior of LongRange Percolation and Ising Model.
Noam Berger*, Hebrew university/U.C. Berkeley
(95760113)

11:00 a.m.
Discussion

Sunday September 24, 2000, 9:00 a.m.11:20 a.m.
Special Session on Operator Algebras and Operator Theory, III
Room 3201, Sandford Fleming Building
Organizers:
ManDuen Choi, University of Toronto choi@math.toronto.edu
George Elliott, University of Toronto elliott@math.toronto.edu

9:00 a.m.
Operator versions of the CauchySchwarz inequality.
Chandler Davis*, University of Toronto
(95747252)

9:30 a.m.
The structure of free semigroup algebras.
Kenneth R. Davidson*, University of Waterloo
Elias Katsoulis, East Carolina University
David R. Pitts, University of Nebraska
(95747148)

10:00 a.m.
Projective Operator Spaces in Harmonic Analysis.
Brian Forrest*, University of Waterloo
(95743189)

10:30 a.m.
On the $\mathcal {OL}_{\infty}$ structure of nuclear $C^*$algebras.
Marius Junge, University of Illinois at UrbanaChampaign
Narutaka Ozawa, Texas A&M University
ZhongJin Ruan*, University of Illinois at UrbanaChampaign
(95746158)

11:00 a.m.
First and Second Order Arithmetic Means, Operator Ideals and a Solution to a Problem of Wodzicki.
Victor Kaftal, University of Cincinnati
Gary Weiss*, University of Cincinnati
(95747308)

Sunday September 24, 2000, 11:40 a.m.12:30 p.m.
Invited Address
Index theorems, formality theorems, and homotopy algebras.
Room 3154, Medical Sciences Building
Boris Tsygan*, Pennsylvania State University
(9575803)

Sunday September 24, 2000, 2:00 p.m.3:20 p.m.
Special Session on Ergodic Theory and Dynamical Systems, IV
Room 1105, Sandford Fleming Building
Organizers:
Andres del Junco, University of Toronto deljunco@math.toronto.edu
Blair Madore, SUNY, Potsdam madorebf@potsdam.edu

2:00 p.m.
Limit Measures for Affine Cellular Automata.
Reem A Yassawi*, Trent University
Marcus Pivato, University of Toronto
(95728291)

2:30 p.m.
On the general convergence of Halley's Method and other superquadratic rootfinding algorithms.
Kyle E Kneisl*, University of North Carolina at Chapel Hill
(9573753)

3:00 p.m.
Asymptotics for the Jumps of Ergodic Averages.
Pedro J Catuogno, Mar del Plata National University. Mar del Plata, Argentina.
Sebastian E Ferrando*, Ryerson Polytechnic University. Toronto, Canada.
(9573750)

Sunday September 24, 2000, 2:00 p.m.4:20 p.m.
Special Session on Nonabsolute Integration, IV
Room 120, Galbraith Building
Organizers:
Patrick Muldowney, University of Ulster P.Muldowney@ulst.ac.uk
Erik Talvila, University of Illinois, Urbana talvila@math.uiuc.edu

2:00 p.m.
On the $C$integral.
Benedetto Bongiorno*, University of Palermo
(95726330)

2:30 p.m.
On some nonabsolute convergent integrals of Banach valued functions.
Luisa Di Piazza*, Universita' di Palermo
(95728328)

3:00 p.m.
On weak convergence of Banach valued stochastic processes of Pettis and McShane integrable functions.
Valeria Marraffa*, Universita' di Palermo
(95726329)

4:00 p.m.
On tensor products of $AC_*$ charges and Radon measures.
Zolt\'an Buczolich*, E\"otv\"os University
(95726109)

Sunday September 24, 2000, 2:00 p.m.5:20 p.m.
Special Session on Functional Differential Equations and Applications, IV
Room 244, Galbraith Building
Organizers:
Anatoli F. Ivanov, Pennsylvania State University afi1@psu.edu
Jianhong Wu, York University wujh@pascal.math.yorku.ca

2:00 p.m.
Mathematical Models of bilingualism and biculturism.
Herb I. Freedman*, University of Alberta
(95734333)

3:00 p.m.
A NonLocal Delayed and Diffusive PredatorPrey Model.
Xiaoqiang Zhao*, Memorial University of Newfoundland
(9573560)

3:30 p.m.
On perturbations of delaydifferential equations with periodic orbits.
Jack K Hale, Georgia Institute of Technology
Marion Weedermann*, University of Wisconsin  Green Bay
(95739241)

4:00 p.m.
Stability of Stochastic Differential Delay Equations with Jumps with Applications to Finance and Insurance.
Anatoliy V Swishchuk*, Intern. Mathem. Center
(95760106)

4:30 p.m.
Chaos and asymptotical stability in discrete time recurrent neural networks with generalized inputoutput function.
Zhujun Jing*, Academy of Science
(95734334)

5:00 p.m.
A Class of Differential Equations Arising from Modulation Theory.
Bathi Kasturiarachi*, Kent State University  Stark Campus
(95734313)

Sunday September 24, 2000, 2:00 p.m.5:45 p.m.
Special Session on Representation Theory of Infinite Dimensional Lie Algebras, IV
Room 3163, Medical Sciences Building
Organizers:
Yun Gao, York University ygao@yorku.ca

2:00 p.m.
Downup Algebras, Their Structure and Representations.
Georgia Benkart*, University of Wisconsin, Madison
(95716267)

3:00 p.m.
Quantum general affine algebras and symmetric polynomials.
Naihuan Jing*, North Carolina State University
(95717208)

4:00 p.m.
Crystal bases for quantum affine algebras and combinatorics of Young walls.
SeokJin Kang*, Seoul National University
(95717226)

5:00 p.m.
Covering Algebras of Extended Affine Lie Algebras.
Stephen Berman*, Univ. of Sask.
(9571778)

Sunday September 24, 2000, 2:00 p.m.4:50 p.m.
Special Session on Pseudodifferential Operators, Wavelet Transforms and Related Topics, IV
Room 220, Galbraith Building
Organizers:
M. W. Wong, York University mwwong@pascal.math.yorku.ca

2:00 p.m.
Hodge theory in the Sobolev topology.
Steven G Krantz*, Washington University in St. Louis
(95735305)

3:00 p.m.
Construction of wavelets using special functions.
Ahmed I Zayed*, University of Central Florida
(9573374)

4:00 p.m.
TimeFrequency Analysis of Pseudodifferential Operators.
Demetrio Labate*, Washington University
(95742205)

4:30 p.m.
Cauchy Transforms and Hilbert Problems in Weighted Spaces of Integrable distributions.
Christiane CartonLebrun*, Universite de MonsHainaut
(9574669)

Sunday September 24, 2000, 2:00 p.m.4:55 p.m.
Special Session on Applied Categorical Structures, IV
Room 2173, Medical Sciences Building
Organizers:
Joan Wick Pelletier, York University jwpell@yorku.ca
Walter Tholen, York University walter.tholen@mathstat.yorku.ca

2:00 p.m.
Injective hulls of partially ordered monoids.
J. Lambek*, McGill University
(95706218)

2:30 p.m.
Monoreflections in categories of ordered rings.
James J Madden*, Wesleyan Univ. \& Louisiana State Univ.
(95718199)

3:00 p.m.
Finitely productive classes of uniform spaces which generate cartesianclosed categories.
Gloria Tashjian*, Worcester, MA
(95718132)

3:30 p.m.
Free Double Categories and the Word Problem for Groups.
Robert Par\'e*, Dalhousie University
Robert MacG. Dawson, Saint Mary's University
(9571890)

4:00 p.m.
Flat covers and factorizations.
Jiri Rosicky*, Masaryk University
(95718107)

4:30 p.m.
On the pivotal, symmetric case of involutory Hopf objects.
Fernando J. O. Souza*, Theoretical Division, T6, Los Alamos National Lab.
(95718265)

Sunday September 24, 2000, 2:00 p.m.4:50 p.m.
Special Session on Modern Schubert Calculus, IV
Room 119, Galbraith Building
Organizers:
Nantel Bergeron, York University bergeron@mathstat.yorku.ca
Frank Sottile, University of Wisconsin sottile@math.umass.edu

2:00 p.m.
Quantum Cohomology of Flag Manifolds.
Linda Chen*, Columbia University
(95714255)

2:30 p.m.
Standard conjectures for the arithmetic Grassmannian $G(2,n)$.
Andrew Kresch*, University of Pennsylvania
Harry Tamvakis, University of Pennsylvania
(9571452)

3:00 p.m.
Break

3:30 p.m.
Embeddings of Schur functions into types $B/C/D$.
Michael Kleber*, MIT
(95705172)

4:00 p.m.
Honeycombs and Facets of the Littlewood Richardson cone.
Allen Knutson, Berkeley
Terry Tao, UCLA
Chris Woodward*, Rutgers
(95705278)

4:30 p.m.
Eigenvalues of majorized Hermitian matrices and Schubert calculus.
William Fulton*, University of Michigan
(95715194)

Sunday September 24, 2000, 2:00 p.m.3:20 p.m.
Special Session on Discrete and Applied Geometry, IV
Room 3171, Medical Sciences Building
Organizers:
Asia Ivic Weiss, York University weiss@pascal.math.yorku.ca
Walter Whiteley, York University whiteley@pascal.math.yorku.ca

2:00 p.m.
Colored Frieze Patterns.
Heidi L Burgiel*, University of Illinois, Chicago
John H Conway, Princeton University
Chaim GoodmanStrauss, University of Arkansas
(95752266)

2:30 p.m.
Symmetric Tessellations on Euclidean Spaceforms.
Egon Schulte*, Northeastern University
(95751273)

3:00 p.m.
A structure theorem for Voronoi polytopes for lattices.
Robert Erdahl*, Queen's University
(95752324)

Sunday September 24, 2000, 2:00 p.m.3:50 p.m.
Special Session on Hamiltonian Systems, IV
Room 1101, Sandford Fleming Building
Organizers:
Lisa Jeffrey, University of Toronto jeffrey@math.toronto.edu
Velimir Jurdjevic, University of Toronto jurdj@math.toronto.edu
Boris Khesin, University of Toronto khesin@math.toronto.edu

2:00 p.m.
A unified geometrical approach to the problem of integrability of Hamiltonian systems by separation of variables.
Roman Smirnov*, University of Waterloo
Raymond G McLenaghan, University of Waterloo
Aaron T Bruce, University of Waterloo
(9575824)

2:30 p.m.
Periodic orbits of a particle in a magnetic field.
Ely Kerman*, Fields Institute
(95737135)

3:30 p.m.
Discussion

Sunday September 24, 2000, 2:00 p.m.4:20 p.m.
Special Session on Analytic Number Theory, IV
Room 2172, Medical Sciences Building
Organizers:
John Friedlander, University of Toronto frdlndr@math.toronto.edu
Steve Gonek, University of Rochester gonek@math.rochester.edu

2:00 p.m.
On a variant of quantum ergodicity.
Wenzhi Luo*, The Ohio State University
(95711154)

2:30 p.m.
On the mean lattice point discrepancy of a convex disc.
Werner Georg Nowak*, Universit\"at f\"ur Bodenkultur, Vienna
(95711114)

3:00 p.m.
On the greatest prime factor of shifted products.
Cameron L Stewart*, University of Waterloo
(95711233)

3:30 p.m.
Biases in the ShanksR{\'e}nyi Prime Number Race.
Andrey Feuerverger, University of Toronto
Greg Martin*, University of Toronto
(95711163)

4:00 p.m.
Z[$\sqrt{14}$] is Euclidean.
Malcolm Harper, McGill University
Ram Murty*, Queen's University
(95711155)

Sunday September 24, 2000, 2:00 p.m.4:20 p.m.
Special Session on Nonlinear Functional Analysis, IV
Room 248, Galbraith Building
Organizers:
Sankatha Singh, Memorial University of Newfoundland ssingh@morgan.ucs.mun.ca
Bruce Watson, Memorial University of Newfoundland bruce2@math.mun.ca

2:00 p.m.
Local Solvability for semilinear partial differential equations with constant strength.
Luigi Rodino*, Universita' di Torino
(9574729)

2:30 p.m.
Ky Fan's Best Approximation and Applications.
Antonio Carbone, Univ. of Calabria
S P Singh*, Memorial University
(95747108)

3:00 p.m.
Tauberian Theorems and its Applications.
Vikramaditya Singh*, Mehta Research Institute of Mathematics and Mathematical Physics
(95740159)

3:30 p.m.
Iterative Methods for Approximation of Fixed Points and Applications.
Wataru Takahashi*, Tokyo Institute of Technology
(9574786)

4:00 p.m.
Approximation results by nonlinear integral operators and applications to signal processing.
Gianluca Vinti*, Dipartimento di Matematica e Informatica, Universit\'a degli Studi di Perugia
(9574797)

Sunday September 24, 2000, 2:00 p.m.4:10 p.m.
Special Session on Probability, IV
Room 305, Galbraith Building
Organizers:
Neal Madras, York University madras@pascal.math.yorku.ca
George L. O'Brien, York University obrien@yorku.ca
Thomas Salisbury, York University salt@pascal.math.yorku.ca
Donna Salopek, York University dsalopek@yorku.ca

2:00 p.m.
Dominating edge property for a class of reinforced random walks.
Vlada Limic*, Cornell University
(95760272)

2:45 p.m.
Discussion

3:30 p.m.
Discussion

Sunday September 24, 2000, 2:00 p.m.4:20 p.m.
Special Session on Operator Algebras and Operator Theory, IV
Room 3201, Sandford Fleming Building
Organizers:
ManDuen Choi, University of Toronto choi@math.toronto.edu
George Elliott, University of Toronto elliott@math.toronto.edu

2:00 p.m.
Finite approximations and physics over unconventional fields and rings.
Trond Digernes*, The Norwegian University of Science and Technology
(95781274)

2:30 p.m.
$q$Circular elements and noncommutative tori.
James A. Mingo*, Queen's University
Alexandru Nica, University of Waterloo
(95746231)

3:00 p.m.
Rcyclic matrices in free probability.
Alexandru M Nica*, University of Waterloo
Roland Speicher, Queen's University
Dimitri Shlyakhtenko, U.C.L.A.
(95746216)

3:30 p.m.
Maximization problems for free entropy.
Roland Speicher*, Queen's University, Kingston
(9574675)

4:00 p.m.
Discussion

Sunday September 24, 2000, 2:30 p.m.5:20 p.m.
Special Session on Commutative Algebra and Algebraic Geometry, IV
Room 4171, Medical Sciences Building
Organizers:
Anthony Geramita, Queens University tony@mast.queensu.ca
William Traves, United States Naval Academy traves@usna.edu

2:30 p.m.
Desingularization Algorithms.
Edward Bierstone*, University of Toronto
Pierre Milman, University of Toronto
(95714225)

3:00 p.m.
Monomialization of Morphisms.
Steven D Cutkosky*, University of Missouri
(95714130)

3:30 p.m.
Equations of modular curves.
Sorin E Popescu*, Columbia University
(95714174)

4:00 p.m.
Quot schemes and effective base point freeness on moduli spaces of vector bundles.
Mihnea Popa*, University of Michigan
(95714185)

4:30 p.m.
Weighted projective planes and automorphisms of ${\mathbb C}^3$.
Peter Russell*, McGill University
(95714115)

5:00 p.m.
Branched covers of the sphere and the geometry and topology of the moduli space of curves.
Ravi Vakil*, M.I.T.
(95714289)

Sunday September 24, 2000, 3:00 p.m.3:50 p.m.
Special Session on Noncommutative Geometry, IV
Room 3202, Sandford Fleming Building
Organizers:
Ryszard Nest, University of Copenhagen rnest@math.ku.dk
Victor Nistor, Pennsylvania State University nistor@math.psu.edu
Boris Tsygan, Pennsylvania State University tsygan@math.psu.edu

3:00 p.m.
Discussion

3:30 p.m.
Classification of Symplectic Leaves of Complex Reductive PoissonLie Groups.
Milen T Yakimov*, University of California at Berkeley
(95722268)
Inquiries: meet@ams.org