AMS Sectional Meeting Program by Day
Current as of Saturday, October 11, 2008 00:27:40
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Inquiries: meet@ams.org
2008 Fall Western Section Meeting
Vancouver, Canada, October 45, 2008 (Saturday  Sunday)
Meeting #1041
Associate secretaries:
Michel L Lapidus, AMS
lapidus@math.ucr.edu,
lapidus@mathserv.ucr.edu
Sunday October 5, 2008

Sunday October 5, 2008, 7:30 a.m.12:00 p.m.
Meeting Registration
South Concourse, Student Union Building

Sunday October 5, 2008, 7:30 a.m.12:00 p.m.
Exhibit and Book Sale
South Concourse, Student Union Building

Sunday October 5, 2008, 8:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis and Related Topics, III
Room 200, Chemistry Building
Organizers:
Malabika Pramanik, University of British Columbia malabika@math.ubc.ca
Burak Erdogan, University of Illinois at UrbanaChampaign berdogan@math.uiuc.edu

Sunday October 5, 2008, 8:00 a.m.10:50 a.m.
Special Session on Applications of Algebraic Geometry, III
Room 110, Hugh Dempster Pavillion
Organizers:
Elizabeth S. Allman, University of Alaska Fairbanks e.allman@uaf.edu
Rekha R. Thomas, University of Washington thomas@math.washington.edu

8:00 a.m.
Algebraic aspects of Gaussian graphical models.
Seth Sullivant*, North Carolina State University
(10411485)

9:00 a.m.
Discrete Homotopy Groups and Subspace Arrangements.
Helene Barcelo*, Mathematical Sciences Research Institute and Arizona State University
Christopher Severs, Arizona State University
Jacob White, Arizona State University
(104105200)

9:30 a.m.
Numerical algebraic geometry in optimal control.
Dan Bates*, Colorado State University
(104149129)

10:00 a.m.
Grassmann Varieties, Schubert Varieties and Computer Vision.
Michael Kirby, Colorado State University
Chris Peterson*, Colorado State University
JenMei Chang, Colorado State University
(104114145)

10:30 a.m.
On bounding as well as computing the Betti numbers of semialgebraic sets.
Saugata Basu*, Department of Mathematics, Purdue University, West Lafayette.
(104114165)

Sunday October 5, 2008, 8:00 a.m.10:50 a.m.
Special Session on Nonlinear Waves and Coherent Structures, II
Room 126, Chemistry Building
Organizers:
Bernard Deconinck, University of Washington bernard@amath.washington.edu
Jeffrey DiFranco, Seattle University difranco@seattleu.edu

8:00 a.m.
SelfReplicating Localized Spot Solutions for ReactionDiffusion Systems in Two Space Dimensions.
Michael J Ward*, Dept. of Mathematics, University of British Columbia
(10413548)

8:30 a.m.
On the Convergence of Hill's Method.
Christopher W. Curtis*, University of Washington
Bernard Deconinck, University of Washington
(10416579)

9:00 a.m.
Shortwavelength phenomena in spatially discrete systems.
Harish Bhat*, University of California, Merced
Braxton Osting, Columbia University
Ehsan Afshari, Cornell University
(104134293)

9:30 a.m.
Surface wave generated by a positive forcing due to an obsruction.
Jeongwhan Choi*, Korea University
ShuMing Sun, Virginia Tech
SungIm Whang, NIMS
(104176180)

10:00 a.m.
Dispersive Corrections to a Modulation Theory for Stratified Gravity Waves.
Razvan C Fetecau*, Simon Fraser University
David J Muraki, Simon Fraser University
(10417643)

10:30 a.m.
The ZeroDispersion Similariton.
J. Nathan Kutz*, Applied Mathematics, University of Washington
Brandon G. Bale, Applied Mathematics, University of Washington
(10417858)

Sunday October 5, 2008, 8:00 a.m.10:50 a.m.
Special Session on Hilbert Functions and Free Resolutions, III
Room 300, Chemistry Building
Organizers:
Susan Cooper, California Polytechnic State University sucooper@calpoly.edu
Christopher A. Francisco, Oklahoma State University chris@math.okstate.edu
Benjamin P. Richert, California Polytechnic State University brichert@calpoly.edu

8:00 a.m.
The Lexpluspowers conjecture holds for monomials.
Jeffrey A Mermin*, University of Kansas
Satoshi Murai, Osaka University
(104113126)

8:30 a.m.
On the componentwise linearity of lex ideals in toric rings.
Satoshi Murai*, Osaka University
(104113160)

9:00 a.m.
Complete Intersection Points on General Surfaces in Projective 3space.
Anthony V Geramita*, Queen's Univesity(Canada),Univesita' di Genova (Italy)
Enrico Carlini, Politecnico di Torino, Torino, Italy
Luca Chiantini, Universita' di Siena, Siena, Italy
(10411491)

9:30 a.m.
Multigraded Hilbert Schemes.
Gregory G Smith*, Queen's University
Diane Maclagan, University of Warwick
(10411496)

10:00 a.m.
Gorenstein presentations and semidualizing modules.
Sean SatherWagstaff*, North Dakota State University
Dave Jorgensen, University of Texas at Arlington
Graham Leuschke, Syracuse University
(104113154)

10:30 a.m.
Additive splittings of homogeneous polynomials.
Johannes Kleppe*, Buskerud University College, Department of Technology, Norway
(104114182)

Sunday October 5, 2008, 8:00 a.m.10:50 a.m.
Special Session on Wavelets, Fractals, Tilings and Spectral Measures, III
Room 150, Chemistry Building
Organizers:
Dorin Ervin Dutkay, University of Central Florida ddutkay@mail.ucf.edu
Palle E. T. Jorgensen, University of Iowa jorgen@math.uiowa.edu
Ozgur Yilmaz, University of British Columbia oyilmaz@math.ubc.ca

8:00 a.m.
Weighted irregular Gabor and wavelet systems.
JeanPierre Gabardo*, McMaster University
(104142256)

8:30 a.m.
A wavelet decomposition of Besov spaces in $R^n$.
Jens Gerlach Christensen*, Louisiana State University
Gestur Olafsson, Louisiana State University
(104143175)

9:00 a.m.
On pseudodifferential operators on fractals.
Marius V Ionescu*, University of Connecticut
Strichartz S Robert, Cornell University
(104146170)

9:30 a.m.
A resolvent kernel for the Laplacian on pcf self similar fractals.
Marius Ionescu, Cornell University and University of Connecticut
Erin P.J. Pearse, University of Iowa
Luke G. Rogers*, University of Connecticut
HuoJun Ruan, Zhejiang Univeristy and Cornell University
Robert S. Strichartz, Cornell University
(104128249)

10:00 a.m.
Operator theory of electrical resistance networks.
Erin P. J. Pearse*, University of Iowa
Palle E. T. Jorgensen, University of Iowa
(10413108)

10:30 a.m.
Gibbs States on the Symbolic Space over a Finite Alphabet.
Eugen Andrei Ghenciu*, University of Alaska Fairbanks
(104137105)

Sunday October 5, 2008, 8:00 a.m.10:40 a.m.
Special Session on Probability and Statistical Mechanics, III
Room 4, Woodward Building (Instructional Resources Center/IRC)
Organizers:
David Brydges, University of British Columbia db5d@math.ubc.ca
Richard Kenyon, Brown University rkenyon@math.brown.edu

Sunday October 5, 2008, 8:00 a.m.10:50 a.m.
Special Session on West End Number Theory, III
Room 1221, Forest Sciences Centre
Organizers:
Nils Bruin, Simon Fraser University nbruin@cecm.sfu.ca
Matilde N. Lalin, University of Alberta mlalin@math.ualberta.ca
Greg Martin, University of British Columbia gerg@math.ubc.ca

Sunday October 5, 2008, 8:30 a.m.10:50 a.m.
Special Session on Algorithmic Probability and Combinatorics, III
Room 1, Woodward Building (Instructional Resources Center/IRC)
Organizers:
Manuel Lladser, University of Colorado lladser@colorado.edu
Robert S. Maier, University of Arizona rsm@math.arizona.edu
Marni Mishna, Simon Fraser University mmishna@cs.sfu.ca
Andrew Rechnitzer, University of British Columbia andrewr@math.ubc.ca

8:30 a.m.
Graph classes with given $3$connected components: asymptotic counting, limit laws and critical phenomena.
Juanjo Rué*, Universitat Politècnica de Catalunya (UPC)
Marc Noy, Universitat Politècnica de Catalunya (UPC)
Omer Giménez, Universitat Politècnica de Catalunya (UPC)
(104105102)

9:00 a.m.
Random PatternAvoiding Permutations.
Neal Madras*, York University
(10416044)

9:30 a.m.
Pattern Theorems for SelfAvoiding Polygons in $\mathbb{Z}^2$ and $\mathbb{Z}^3$.
Chris Soteros*, University of Saskatchewan
(104105284)

10:00 a.m.
Cutoff and exit from metastability: two sides of the same coin.
Javiera Barrera*, Universidad Tec. Federico Sta. María
Olivier Bertoncini, Université de Rouen
Roberto Fernández, Université de Rouen
(10416029)

10:30 a.m.
Tails of perpetuities.
Paweł Hitczenko*, Department of Mathematics, Drexel University
Jacek Wesołowski, Wydział MiNI, Politechnika Warszawska
(10416036)

Sunday October 5, 2008, 8:30 a.m.10:50 a.m.
Special Session on Convex and Discrete Geometry and Asymptotic Analysis, III
Room 5, Woodward Building (Instructional Resources Center/IRC)
Organizers:
Karoly Bezdek, University of Calgary bezdek@math.ucalgary.ca
A. E. Litvak, University of Alberta alexandr@math.ualberta.ca

8:00 a.m.
Triangulations in high dimensions and the sumproduct problem.
Jozsef Solymosi*, University of British Columbia, Vancouver
(104105299)

8:30 a.m.
Simultaneous partitions by convex pieces.
Imre Barany*, Renyi Institute, Budapest and UCL, London
(104152163)

9:00 a.m.
Global Rigidity.
Robert Connelly*, Cornell University, Depatment of Math., Malott Hall, Ithaca, NY 14853
(104151294)

9:30 a.m.
Spherical Reuleaux Polytopes.
Karoly Bezdek*, Professor, Canada Research Chair, University of Calgary
(104152151)

10:00 a.m.
Combinatorial structure of Schulte's chiral polyhedra.
Daniel Pellicer, York University
Asia Ivić Weiss*, York University
(104151130)

10:30 a.m.
The contractibility of the space of noncompact convex hypersurfaces.
Mohammad Ghomi*, Georgia Institute of Technology
(104153234)

Sunday October 5, 2008, 8:30 a.m.10:45 a.m.
Special Session on padic Groups and Automorphic Forms, III
Room 101, Hugh Dempster Pavillion
Organizers:
Clifton L. R. Cunningham, University of Calgary cunning@math.ucalgary.ca
Julia Gordon, University of British Columbia gor@math.ubc.ca

Sunday October 5, 2008, 8:30 a.m.10:45 a.m.
Special Session on Combinatorial Representation Theory, III
Room 3, Woodward Building (Instructional Resources Center/IRC)

Sunday October 5, 2008, 9:00 a.m.10:45 a.m.
Special Session on Noncommutative Geometry, III
Room 301, Hugh Dempster Pavillion
Organizers:
Raphael Ponge, University of Toronto ponge@math.utoronto.ca
Bahram Rangipour, University of New Brunswick bahram@unb.ca
Heath Emerson, University of Victoria hemerson@uvic.ca

Sunday October 5, 2008, 9:00 a.m.10:50 a.m.
Special Session on Knotting and Linking of Macromolecules, III
Room 102, Chemical and Biological Engineering Bldg
Organizers:
Eric J. Rawdon, University of Saint Thomas ericrawdon@gmail.com
Kenneth C. Millett, University of California Santa Barbara millett@math.ucsb.edu

9:00 a.m.
Relative Tutte Polynomials for Colored Graphs and Virtual Knot Theory.
Yuanan Diao*, Department of Mathematics and Statistics, University of North Carolina Charlotte
Gabor Hetyei, Department of Mathematics and Statistics, UNC Charlotte
(10415750)

9:30 a.m.
On the ropelength of knots and links.
Claus Ernst*, Western Kentucky University
Yuanan Diao, University of North Carolina at Charlotte
A. Por, Western Kentucky University
U. Ziegler, Western Kentucky University
(104157229)

10:00 a.m.
Bridge Probability Energy of Knots.
Blake Mitchell, University of Iowa
Nick Navaroli, California State University, San Bernardino
Rolland Trapp*, Cal State San Bernardino
(10415774)

10:30 a.m.
Discussion

Sunday October 5, 2008, 9:00 a.m.10:50 a.m.
Special Session on Special Functions and Orthogonal Polynomials, III
Room 124, Chemistry Building
Organizers:
Mizanur Rahman, Carleton University mrahman@math.carleton.ca
Diego Dominici, State University of New York New Paltz dominicd@newpaltz.edu

9:00 a.m.
Families of quadratic and cubic hypergeometric transformations.
Robert S. Maier*, University of Arizona
(104133286)

9:30 a.m.
Hypergeometric analogues of the ArithmeticGeometric Mean.
Roger W Barnard*, Texas Tech University
(10413395)

10:00 a.m.
Orthogonal polynomials and nonlinear difference equations.
Sarah Jane Johnston*, University of the Witwatersrand, Johannesburg, South Africa
Mourad E H Ismail, University of Central Florida, Orlando, Florida, USA
(104133224)

10:30 a.m.
Constrained Spline Smoothing and Applications.
Kirill A. Kopotun*, University of Manitoba
(10414169)

Sunday October 5, 2008, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Topology and Related Topics, III
Room 101, Chemical and Biological Engineering Bldg
Organizers:
Alejandro Adem, University of British Columbia adem@math.ubc.ca
Stephen Ames Mitchell, University of Washington mitchell@math.washington.edu

Sunday October 5, 2008, 9:00 a.m.10:20 a.m.
Special Session on Noncommutative Algebra and Geometry, III
Room 310, Hugh Dempster Pavillion
Organizers:
Jason Bell, Simon Fraser University jpb@math.sfu.ca
James Zhang, University of Washington zhang@math.washington.edu

Sunday October 5, 2008, 9:00 a.m.10:40 a.m.
Special Session on Moduli Spaces and Singularity Theory, III
Room 103, Chemical and Biological Engineering Bldg
Organizers:
James B. Carrell, University of British Columbia carrell@math.ubc.ca
Patrick Brosnan, University of British Columbia brosnan@math.ubc.ca
Kalle Karu, University of British Columbia karu@math.ubc.ca

Sunday October 5, 2008, 11:00 a.m.11:50 a.m.
Invited Address
Representation theory of symmetric groups.
Room 2000, Biological Sciences Building
Alexander S. Kleshchev*, University of Oregon
(10412002)

Sunday October 5, 2008, 2:00 p.m.2:50 p.m.
Invited Address
Population spread and the dynamics of biological invasions.
Room 2000, Biological Sciences Building
Mark Lewis*, University of Alberta
(10413503)

Sunday October 5, 2008, 3:00 p.m.5:20 p.m.
Special Session on Harmonic Analysis and Related Topics, IV
Room 200, Chemistry Building
Organizers:
Malabika Pramanik, University of British Columbia malabika@math.ubc.ca
Burak Erdogan, University of Illinois at UrbanaChampaign berdogan@math.uiuc.edu

Sunday October 5, 2008, 3:00 p.m.4:55 p.m.
Special Session on Noncommutative Geometry, IV
Room 301, Hugh Dempster Pavillion
Organizers:
Raphael Ponge, University of Toronto ponge@math.utoronto.ca
Bahram Rangipour, University of New Brunswick bahram@unb.ca
Heath Emerson, University of Victoria hemerson@uvic.ca

3:00 p.m.
Dirac operators for coadjoint orbits of compact semisimple Lie groups.
Marc A. Rieffel*, University of California, Berkeley
(10414661)

3:30 p.m.
Equivariant $KK$theory for groupoid actions and $C^*$extensions.
Constantin Dorin Dumitraşcu*, Northern Arizona University
Radu Popescu, Instituto Superior Tecnico, Lisbon, Portugal
(104119139)

4:00 p.m.
Orbifold Sectors and Applications.
Carla Farsi*, University of Colorado
Christopher Seaton, Rhodes College
(104153143)

4:30 p.m.
Index Theory for SL(n,C).
Robert E Yuncken*, University of Victoria
(104119112)

Sunday October 5, 2008, 3:00 p.m.5:50 p.m.
Special Session on Applications of Algebraic Geometry, IV
Room 110, Hugh Dempster Pavillion
Organizers:
Elizabeth S. Allman, University of Alaska Fairbanks e.allman@uaf.edu
Rekha R. Thomas, University of Washington thomas@math.washington.edu

Sunday October 5, 2008, 3:00 p.m.4:50 p.m.
Special Session on Algorithmic Probability and Combinatorics, IV
Room 1, Woodward Building (Instructional Resources Center/IRC)
Organizers:
Manuel Lladser, University of Colorado lladser@colorado.edu
Robert S. Maier, University of Arizona rsm@math.arizona.edu
Marni Mishna, Simon Fraser University mmishna@cs.sfu.ca
Andrew Rechnitzer, University of British Columbia andrewr@math.ubc.ca

3:00 p.m.
Boltzmann samplers, Pólya theory, and cyclepointing.
Manuel Bodirsky, Ecole Polytechnique, Paris.
Eric P Fusy*, Simon Fraser University, Vancouver
Mihyun Kang, Humboldt Universitaet, Berlin
Stefan Vigerske, Humboldt Universitaet, Berlin
(10410592)

3:30 p.m.
The subspace pursuit algorithm for compressed sensing signal reconstruction.
Wei Dai*, University of Illinois, UrbanaChampaign
Olgica Milenkovic, University of Illinois, UrbanaChampaign
(104160211)

4:00 p.m.
Packing sets of patterns.
Alexander Burstein*, Howard University
Peter Hästö, University of Oulu
(104105269)

4:30 p.m.
Finitary colouring.
Alexander E Holroyd*, University of British Columbia
(104160204)

Sunday October 5, 2008, 3:00 p.m.5:50 p.m.
Special Session on Convex and Discrete Geometry and Asymptotic Analysis, IV
Room 5, Woodward Building (Instructional Resources Center/IRC)
Organizers:
Karoly Bezdek, University of Calgary bezdek@math.ucalgary.ca
A. E. Litvak, University of Alberta alexandr@math.ualberta.ca

3:00 p.m.
Maximizing the volume of spherically convex bodies of given inradius.
Károly Bezdek, University of Calgary, Canada
Balázs Csikós*, Eötvös University, Hungary
Rolf Schneider, Universität Freiburg, Germany
(104152281)

3:30 p.m.
Zigzag vectors in linear subspaces of $\mathbb R^n$.
Vladimir G Troitsky*, University of Alberta
(104146118)

4:00 p.m.
Shadow boundaries and the Fourier transform.
Paul Goodey, University of Oklahoma
Vladyslav Yaskin, University of Alberta
Maryna Yaskina*, University of Alberta
(10415266)

4:30 p.m.
Christoffel's problem and the Fourier transform.
Paul Goodey, University of Oklahoma
Vladyslav Yaskin*, University of Alberta
Maryna Yaskina, University of Alberta
(10415265)

5:00 p.m.
"Gaussian measure of sections of dilates and shifts of convex bodies".
Artem Zvavitch*, Kent State University
(104152266)

5:30 p.m.
On a question of A. Koldobsky.
Alexey Goncharov, South Federal State University, Russia
Dmitry Ryabogin*, Kent State University
(104152300)

Sunday October 5, 2008, 3:00 p.m.4:20 p.m.
Special Session on Knotting and Linking of Macromolecules, IV
Room 102, Chemical and Biological Engineering Bldg
Organizers:
Eric J. Rawdon, University of Saint Thomas ericrawdon@gmail.com
Kenneth C. Millett, University of California Santa Barbara millett@math.ucsb.edu

Sunday October 5, 2008, 3:00 p.m.5:45 p.m.
Special Session on padic Groups and Automorphic Forms, IV
Room 101, Hugh Dempster Pavillion
Organizers:
Clifton L. R. Cunningham, University of Calgary cunning@math.ucalgary.ca
Julia Gordon, University of British Columbia gor@math.ubc.ca

Sunday October 5, 2008, 3:00 p.m.6:15 p.m.
Special Session on Combinatorial Representation Theory, IV
Room 3, Woodward Building (Instructional Resources Center/IRC)

Sunday October 5, 2008, 3:00 p.m.6:15 p.m.
Special Session on Special Functions and Orthogonal Polynomials, IV
Room 124, Chemistry Building
Organizers:
Mizanur Rahman, Carleton University mrahman@math.carleton.ca
Diego Dominici, State University of New York New Paltz dominicd@newpaltz.edu

Sunday October 5, 2008, 3:00 p.m.3:50 p.m.
Special Session on Algebraic Topology and Related Topics, IV
Room 101, Chemical and Biological Engineering Bldg
Organizers:
Alejandro Adem, University of British Columbia adem@math.ubc.ca
Stephen Ames Mitchell, University of Washington mitchell@math.washington.edu

3:00 p.m.
Discussion

3:30 p.m.
Discussion

Sunday October 5, 2008, 3:00 p.m.4:50 p.m.
Special Session on Wavelets, Fractals, Tilings and Spectral Measures, IV
Room 150, Chemistry Building
Organizers:
Dorin Ervin Dutkay, University of Central Florida ddutkay@mail.ucf.edu
Palle E. T. Jorgensen, University of Iowa jorgen@math.uiowa.edu
Ozgur Yilmaz, University of British Columbia oyilmaz@math.ubc.ca

Sunday October 5, 2008, 3:00 p.m.5:20 p.m.
Special Session on Noncommutative Algebra and Geometry, IV
Room 310, Hugh Dempster Pavillion
Organizers:
Jason Bell, Simon Fraser University jpb@math.sfu.ca
James Zhang, University of Washington zhang@math.washington.edu

Sunday October 5, 2008, 3:00 p.m.6:20 p.m.
Special Session on Probability and Statistical Mechanics, IV
Room 4, Woodward Building (Instructional Resources Center/IRC)
Organizers:
David Brydges, University of British Columbia db5d@math.ubc.ca
Richard Kenyon, Brown University rkenyon@math.brown.edu

Sunday October 5, 2008, 3:00 p.m.4:40 p.m.
Special Session on West End Number Theory, IV
Room 1221, Forest Sciences Centre
Organizers:
Nils Bruin, Simon Fraser University nbruin@cecm.sfu.ca
Matilde N. Lalin, University of Alberta mlalin@math.ualberta.ca
Greg Martin, University of British Columbia gerg@math.ubc.ca
Inquiries: meet@ams.org