AMS Sectional Meeting Program by Day
Current as of Saturday, October 11, 2008 00:27:40
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
Saturday October 4, 2008

Saturday October 4, 2008, 7:30 a.m.4:00 p.m.
Meeting Registration
South Concourse, Student Union Building 
Saturday October 4, 2008, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
South Concourse, Student Union Building 
Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on History and Philosophy of Mathematics, I
Room 2449, Biological Sciences Building
Organizers:
Shawnee L. McMurran, California State University San Bernardino smcmurra@csusb.edu
James J. Tattersall, Providence College tat@providence.edu

8:00 a.m.
The Mathematics Department of \em{The Yates County Chronicle} (18721880).
J J Tattersall*, Providence College
(10410149) 
8:30 a.m.
The Math Wars: A Cultural Perspective.
Robert G Stein*, California State University, San Bernardino
(10410177) 
9:00 a.m.
The Catenary on a Cone in Peirce's \underline{System of Analytic Mechanics}.
Deborah Kent*, Hillsdale College
(104101107) 
9:30 a.m.
The Long Flirtation between Logic and Combinatorics.
John C Stillwell*, University of San Francisco
(10410110) 
10:00 a.m.
The ErdosSzekeres theorem.
Ron Graham*, UC San Diego
(10410581) 
10:30 a.m.
Farey Series, Ford Circles & much more.
Richard K Guy*, University of Calgary
(10411175)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Harmonic Analysis and Related Topics, I
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

8:00 a.m.
Harmonic analysis and ergodic theory.
Christoph M Thiele*, UCLA
(10414273) 
9:00 a.m.
Bilinear Hilbert transforms along curves.
Xiaochun Li*, University of Illinois at UrbanaChampaign
(104142201) 
9:30 a.m.
Estimates for the Xray transform restricted to 2manifolds.
Richard Oberlin*, UCLA
(104142215) 
10:00 a.m.
On the unboundedness of bilinear Fourier multipliers associated to domains with curvature.
S. Zubin Gautam*, UCLA
(104142164) 
10:30 a.m.
Almost everywhere convergence of inverse Fourier transforms.
Elena Prestini*, Universita` di Roma "Tor Vergata"
Leonardo Colzani, Universita` di Milano "Bicocca"
Chris Meaney, Macquarie University, Sidney, Australia
(10414253)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Applications of Algebraic Geometry, I
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.
Polyhedral Methods for Algebraic Curves.
Verschelde Jan*, University of Illinois at Chicago
(104114207) 
9:00 a.m.
Least Squares Methods for Equidistant Tree Reconstruction.
Conor Fahey, San Francisco State University
Serkan Hosten*, San Francisco State University
Nathan Krieger, San Francisco State University
Leslie Timpe, San Francisco State University
(104152193) 
9:30 a.m.
Hidden variables in statistical models and identifiability.
Elizabeth S. Allman, University of Alaska Fairbanks
Catherine Matias, Laboratorie Statistique et Genome, CNRS
John A. Rhodes*, University of Alaska Fairbanks
(10411442) 
10:00 a.m.
Toric Dynamical Systems.
Anne Shiu*, University of California Berkeley
(104114192) 
10:30 a.m.
Truncated Groebner bases and generating sets of lattice ideals for integer programs.
Peter N Malkin*, University of California at Davis
(104114240)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Algorithmic Probability and Combinatorics, I
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

8:00 a.m.
Onedimensional quantum random walk with more than two chiralities.
Torin Greenwood*, University of Pennsylvania
Robin Pemantle, University of Pennsylvania
(104105114) 
8:30 a.m.
Directed Paths in a Layered Environment.
E. J. Janse van Rensburg*, York University
(104182123) 
9:00 a.m.
Directed Compact Percolation near a damp wall and lattice paths.
Aleks L Owczarek*, The University of Melbourne
(10410537) 
9:30 a.m.
Subsets of selfavoiding walks and polygons.
Anthony J Guttmann*, University of Melbourne
John Dethridge, Australia
Tim Garoni, NYU
Iwan Jensen, University of Melbourne
(104105302) 
10:00 a.m.
Fuchsian ODE searches using modular arithmetic.
Iwan Jensen*, Department of Mathematics and Statistics, The University of Melbourne
(104134128) 
10:30 a.m.
Prudent selfavoiding walks.
Mireille BousquetMélou*, CNRS, LaBRI, Université Bordeaux 1
(10410523)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Nonlinear Waves and Coherent Structures, I
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.
On the semiclassical limit of the sineGordon equation.
Peter D Miller*, The University of Michigan
(104135235) 
8:30 a.m.
Analytically determining the spectra of stationary solutions of the focusing and defocusing NLS equations.
Nate Bottman*, University of Washington
Bernard Deconinck, University of Washington
(104135158) 
9:00 a.m.
Coarsening to chaosstabilized fronts in spatiotemporal chaos.
Ralf W Wittenberg*, Simon Fraser University
Ka Fai Poon, Simon Fraser University
(104135275) 
9:30 a.m.
Asymptotic stability in some nonlinear Schroedingertype equations.
Stephen Gustafson*, University of British Columbia
(104135260) 
10:00 a.m.
Stability of Onedimenstional Water Waves.
Katie L Oliveras*, Department of Applied Mathematics, University of Washington
Bernard Deconinck, Department of Applied Math, University of Washington
(104135206) 
10:30 a.m.
The Semiclassical Modified Nonlinear Schrödinger Equation: Spectral Analysis.
Jeffery C DiFranco*, Seattle University
Peter Miller, University of Michigan
(104135254)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Knotting and Linking of Macromolecules, I
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

8:00 a.m.
The linking probability of a pair of lattice polygons spanning a lattice tube.
Mahshid Atapour*, University of Saskatchewan
(104182292) 
8:30 a.m.
The Probability of Knotting after a Local Strand Passage in a SAP with knottype $K$ in $\mathbb{Z}^3$.
Michael L Szafron*, University of Saskatchewan
Christine E Soteros, University of Saskatchewan
(104162222) 
9:00 a.m.
Entanglement Complexity of Systems of SelfAvoiding Walks in Lattice Tubes.
Chris Soteros*, University of Saskatchewan
(104182280) 
9:30 a.m.
Modeling DNA unknotting.
Mariel Vazquez*, Mathematics Department, San Francisco State University
(104192248) 
10:00 a.m.
Knotting of equilateral random polygons with elevated writhe.
Javier Arsuaga*, San Francisco State University
Rocco Varela, San Francisco State University
Robert Scharein, San Francisco State University
(104192236) 
10:30 a.m.
Knotting probability for models of stretched polymers.
Enzo Orlandini*, Department of Physics, University of Padova, Italy
Buks Janse van Rensburg, Department of Mathematics and statistics, York Univerisity , Toronto
Maria Carla Tesi, Dipartimento di Matematica, Universita' di Bologna, Italy
Stu Whittington, Department of Chemistry, University of Toronto, Canada
(104182246)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:45 a.m.
Special Session on padic Groups and Automorphic Forms, I
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

8:00 a.m.
Discussion 
9:00 a.m.
Branching Rules for Supercuspidal Representations of SL(2).
Monica Nevins*, University of Ottawa
(10412094) 
10:00 a.m.
Supercuspidal representations of covering groups.
JuLee Kim*, MIT
(104122250)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Combinatorial Representation Theory, I
Room 3, Woodward Building (Instructional Resources Center/IRC)
Organizers:
Sara C. Billey, University of Washington billey@math.washington.edu
Alexander S. Kleshchev, University of Oregon klesh@uoregon.edu
Stephanie Jane Van Willigenburg, University of British Columbia steph@math.ubc.ca

8:00 a.m.
Representations of the Degenerate Affine Sergeev Superalgebra.
David Hill, University of California, Berkeley
Jonathan Kujawa*, University of Oklahoma
Joshua Sussan, University of California, Berkeley
(104116253) 
9:00 a.m.
Refinements of the LittlewoodRichardson Rule.
Jim Haglund, University of Pennsylvania
Kurt Luoto, University of Washington
Sarah Mason*, Davidson College
Steph Van Willigenburg, University of British Columbia
(10410559) 
10:00 a.m.
Differences of Augmented Staircase Skew Schur Functions.
Matthew J Morin*, University of British Columbia
(104105219) 
10:30 a.m.
Generalized Degree Sequences and Plethysm.
Caroline J Klivans*, University of Chicago
Victor Reiner, University of Minnesota
(104105196)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Hilbert Functions and Free Resolutions, I
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.
Weight Orders and Gröbner bases.
Jennifer Biermann*, Cornell University
Irena Peeva, Cornell University
(104113268) 
8:30 a.m.
Free modules of a multigraded resolution.
Amanda I Beecher*, United States Military Academy
(104113258) 
9:00 a.m.
LCM lattices and Cellular Resolutions of Monomial Ideals.
Sonja Mapes*, Columbia University
(104113127) 
9:30 a.m.
Hilbert functions of monomial curves.
Leslie G. Roberts*, Dept. of Math. and Stats, Queen's University, Kingston, Ontario
(104114177) 
10:00 a.m.
Powers of cover ideals and their associated primes.
Adam Van Tuyl*, Lakehead University
Christopher A. Francisco, Oklahoma State University
Huy Tài Hà, Tulane University
(10411341) 
10:30 a.m.
Ideals defining conjugacy classes of nilpotent matrices.
Riccardo Biagioli, Université de Lyon
Sara Faridi*, Dalhousie University
Mercedes Rosas, Universidad de Sevilla
(10411338)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Wavelets, Fractals, Tilings and Spectral Measures, I
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.
Bessel multiplier operators.
Deguang Han, University of Central Florida
David R. Larson*, Texas A&M University
(104146226) 
8:30 a.m.
Intersection of dilates of shiftinvariant spaces.
Marcin Bownik*, University of Oregon
(104142120) 
9:00 a.m.
Orthonormal Dilations of Parseval Wavelets.
D. Dutkay, University of Central Florida
D. Han, University of Central Florida
G. Picioroaga*, Binghamton University
Q. Sun, University of Central Florida
(10414699) 
9:30 a.m.
Simple wavelet sets.
Kathy D Merrill*, Colorado College
(104142213) 
10:00 a.m.
Wavelet biframes with few generators from multivariate refinable functions.
Martin Ehler*, University of Maryland (Norbert Wiener Center), National Institutes of Health
Bin Han, Department of Mathematical and Statistical Sciences, University of Alberta
(10414111) 
10:30 a.m.
Symmetric orthonormal complex wavelets with arbitrarily high linearphase moments.
Bin Han*, University of Alberta
(10414207)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:40 a.m.
Special Session on Probability and Statistical Mechanics, I
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

8:00 a.m.
Multicoloured matchings with general restrictions.
Gidi Amir, University of Toronto
Omer Angel*, UBC
Ander Holroyd, Microsoft Research
Terry Soo, UBC
(104160216) 
8:30 a.m.
Gibbs measures on combinatorial structures.
Shankar Bhamidi*, Mathematics Department, University of British Columbia
(104160169) 
9:00 a.m.
Dimer packings with gaps and electrostatics: Boundary interactions.
Mihai Ciucu*, Indiana University
(104182238) 
9:30 a.m.
Asymptotic Expansion for Dimer Lambda_d.
Paul Federbush*, University of Michigan
(104182187) 
10:00 a.m.
Five Stories about the Metropolis Algorithm.
Persi Diaconis*, Stanford University, Departments of Mathematics & Statistics
(104160197)

8:00 a.m.

Saturday October 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on West End Number Theory, I
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

8:00 a.m.
Evaluating Igusa Functions.
Reinier Broker, Microsoft Research
Kristin E. Lauter*, Microsoft Research
(104111221) 
9:00 a.m.
Split reductions of simple abelian varieties.
Jeffrey D. Achter*, Colorado State University
(104111142) 
10:00 a.m.
Some Improved Algorithms for Performing Arithmetic in Quadratic Fields.
Hugh C Williams*, University of Calgary
(104111138) 
10:30 a.m.
An Explicit Treatment of Biquadratic Function Fields.
Qingquan Wu, University of Calgary
Renate Scheidler*, University of Calgary
(10411152)

8:00 a.m.

Saturday October 4, 2008, 8:30 a.m.10:55 a.m.
Special Session on Noncommutative Geometry, I
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

8:30 a.m.
The PeterWeylGalois theory of compact principal bundles.
Piotr M. Hajac*, IMPAN
Paul F. Baum,
Ulrich Kraehmer, G. Britain
Rainer Matthes, Germany
Elmar Wagner, Mexico
Bartosz Zielinski, Poland
(104155152) 
9:00 a.m.
Tessera expanders and Lipschitz cohomology.
Jerome Kaminker*, IUPUI
(104146291) 
9:30 a.m.
Hopf algebroids and secondary characteristic classes.
Jerome Kaminker, IUPUI and UC Davis
Xiang Tang*, Washington University
(10415897) 
10:00 a.m.
Noncommutative Tduality.
Calder Daenzer*, University of California at Berkeley
(104151190) 
10:30 a.m.
Positive Cocycles over Noncommutative 2Tori.
YiJun Yao*, Penn State University
(10414639)

8:30 a.m.

Saturday October 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Convex and Discrete Geometry and Asymptotic Analysis, I
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

8:30 a.m.
A characteristic intersection property of generalized simplices.
Valeriu Soltan*, George Mason University
(10415220) 
9:00 a.m.
Spherical twodistance sets.
Oleg R. Musin*, University of Texas at Brownsville, 80 Fort Brown, Brownsville, TX, 78520
(104152100) 
9:30 a.m.
Transversals of Families of Translates of a Convex Body.
Marton Naszodi*, University of Alberta
(104152267) 
10:00 a.m.
Colourful Simplicial Depth.
Tamon Stephen*, Simon Fraser University
(104152161) 
10:30 a.m.
Light Steiner networks for a point set.
Csaba D. Toth*, University of Calgary
(104152271)

8:30 a.m.

Saturday October 4, 2008, 9:00 a.m.10:20 a.m.
Special Session on Special Functions and Orthogonal Polynomials, I
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.
An explicit polynomial form of a qanalogue of the 9j symbols.
Mizan Rahman*, Carleton University
(10413340) 
9:30 a.m.
Tridiagonal pairs of $q$Racah type.
Paul M Terwilliger*, Math Department, University of WisconsinMadison
Tatsuro Ito, Math Department, Kanazawa University
(10413332) 
10:00 a.m.
A nonterminating $q$Dougall summation theorem for hypergeometric series in $U(n)$.
Stephen C Milne*, The Ohio State University
Sheldon L Degenhardt, Baltimore, Maryland
(104133171)

9:00 a.m.

Saturday October 4, 2008, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Topology and Related Topics, I
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

9:00 a.m.
Deformation Ktheory and moduli spaces of flat connections.
Daniel A Ramras*, Vanderbilt University
(10415521) 
9:30 a.m.
A new interpretation of the quadratic closure of a field.
Sunil K Chebolu*, Illinois State University
Jan Minac, Univerity of Western Ontario
(10411224) 
10:00 a.m.
Spaces of homomorphisms and spaces of representations.
F. R. Cohen*, University of Rochester
A. Adem, University of British Columbia
E. Torres, University of Michigan
(104155191) 
10:30 a.m.
Generalized cohomology and generalized Witt schemes.
Justin Noel*, University of Chicago
(104155162)

9:00 a.m.

Saturday October 4, 2008, 9:00 a.m.10:50 a.m.
Special Session on Noncommutative Algebra and Geometry, I
Room 310, Hugh Dempster Pavillion
Organizers:
Jason Bell, Simon Fraser University jpb@math.sfu.ca
James Zhang, University of Washington zhang@math.washington.edu

9:00 a.m.
Duality for K2 algebras.
Thomas Cassidy*, Bucknell University
Christopher Phan, University of Oregon
Brad Shelton, University of Oregon
(10411668) 
9:30 a.m.
On Isoperimetric Profile of Algebras.
Michele D'Adderio*, University of California San Diego
(10411618) 
10:00 a.m.
Components of AuslanderReiten quivers with modules of finite complexity over a finite dimensional selfinjective algebra.
Edward L Green*, Virginia Tech
Dan Zacharia, Syracuse University
(104116135) 
10:30 a.m.
Gorenstein Invariant Subrings of Regular Algebras under Hopf Algebra Actions.
Ellen E. Kirkman*, Wake Forest University
James J. Kuzmanovich, Wake Forest University
James J. Zhang, University of Washington
(104116183)

9:00 a.m.

Saturday October 4, 2008, 9:00 a.m.10:40 a.m.
Special Session on Moduli Spaces and Singularity Theory, I
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

9:00 a.m.
Log canonical and Du Bois singularities.
Karl E. Schwede*, Department of Mathematics, University of Michigan
Sandor J. Kovacs, University of Washington
Karen E. Smith, University of Michigan
(104114131) 
10:00 a.m.
Resolution algorithm in characteristic zero and its possible extension in positive characteristic.
Jaroslaw Wlodarczyk*, Department of Mathematics, Purdue University
(104114104)

9:00 a.m.

Saturday October 4, 2008, 11:00 a.m.11:50 a.m.
Invited Address
Ihara zeta functions and quantum chaos.
Room 2000, Biological Sciences Building
Audrey A. Terras*, University of California San Diego
(10411104) 
Saturday October 4, 2008, 2:00 p.m.2:50 p.m.
Invited Address
Branched polymers.
Room 2000, Biological Sciences Building
Richard Kenyon*, Brown University
(10418201) 
Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on History and Philosophy of Mathematics, II
Room 2449, Biological Sciences Building
Organizers:
Shawnee L. McMurran, California State University San Bernardino smcmurra@csusb.edu
James J. Tattersall, Providence College tat@providence.edu

3:00 p.m.
Geometry and Architectural Design in Medieval Islam.
J. L. Berggren*, Simon Fraser University
(10410133) 
3:30 p.m.
Trigonometry on the Edge: Interpolating Your Way to Medieval Astronomical Success.
Glen R Van Brummelen*, Quest University
(10410176) 
4:00 p.m.
Impact of G.H. Hardy and a Course of Pure Mathematics.
Brenda Davison*, Simon Fraser University
(10410125) 
4:30 p.m.
Integral Equations: a "Revolution" in Mathematics in the early 20th Century?
Tom Archibald*, BC
(10410187) 
5:00 p.m.
Advances in the study of air resistance in projectile motion during the early 18th century.
Shawnee L. McMurran*, California State University San Bernardino
(104101133)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Harmonic Analysis and Related Topics, II
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

3:00 p.m.
$L^p$ estimates for the wave equation on Heisenberg type groups.
Detlef Müller, ChristianAlbrechtsUniversität zu Kiel
Andreas Seeger*, University of Wisconson  Madison
(10413522) 
4:00 p.m.
Kronecker constants for sets of integers.
Kathryn E. Hare*, University of Waterloo
(10414283) 
4:30 p.m.
A Dispersive Bound for ThreeDimensional Schrödinger Operators with Threshold Eigenvalues.
Michael Goldberg*, Johns Hopkins University
(104135178) 
5:00 p.m.
Astala's conjecture on Hausdorff measure distortion under planar quasiconformal mappings.
Michael T. Lacey, Georgia Institute of Technology, Fields Institute
T. Eric Sawyer, McMaster University, Fields Institute
Ignacio UriarteTuero*, Michigan State Univ (current), Univ of MissouriColumbia, Fields Institute
(104130188)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:25 p.m.
Special Session on Noncommutative Geometry, II
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.
The ConnesKasparov isomorphism, Mackey's analogy, and parameters for representations.
Nigel Higson*, Penn State University
(104146231) 
4:00 p.m.
Decomposing metric spaces and topological rigidity.
Erik Guentner*, University of Hawaii at Manoa
Romain Tessera, Vanderbilt University
Guoliang Yu, Vanderbilt University
(104119243) 
4:30 p.m.
Ktheory for certain expanders (jointwork with G. Yu).
Hervé OyonoOyono*, PIMSVictoria
Guoliang Yu, Vanderbilt University
(104119176) 
5:00 p.m.
KKtheoretic Poincaré duality and fixed point theorem.
Hyun Kim*, University of Victoria, Canada
(104119125)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Applications of Algebraic Geometry, II
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

3:00 p.m.
Linear Precision for Toric Surface Patches.
Frank Sottile*, Texas A&M University
Luis David GarciaPuente, Sam Houston State University
Kristian Ranestad, Universitet Oslo
HansChristian Graf von Bothmer, Leibniz Universitität Hannover
(10411446) 
3:30 p.m.
Reconstructing Phylogenetic Mixtures.
Elchanan Mossel, University of California, Berkeley
Sebastien Roch*, Microsoft Research
(104160237) 
4:00 p.m.
An Implementation of the BarvinokWoods Integer Projection Algorithm.
Matthias Köppe*, University of California, Davis
Sven Verdoolaege, Universiteit Leiden
Kevin M. Woods, Oberlin College
(104105230) 
4:30 p.m.
Numerical primary decomposition.
Anton Leykin*, University of Illinois at Chicago
(10411451) 
5:00 p.m.
Toric Surface Codes and Minkowski Length of Polygons.
Ivan Soprunov, Cleveland State University
Jenya Soprunova*, Kent State University
(104114270)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Algorithmic Probability and Combinatorics, II
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.
A new approach to the variance of shape characteristics of random digital search trees.
HsienKuei Hwang*, Institute of Statistical Science, Academia Sinica, Taipei
(104168242) 
3:30 p.m.
Enumeration of distancehereditary graphs.
Cedric Chauve*, Simon Fraser University
Eric Fusy, Simon Fraser University and CNRS
(104105113) 
4:00 p.m.
Smallest Components and Restricted Patterns in Combinatorial Decomposable Structures.
Daniel Panario*, School of Mathematics and Statistics, Carleton University
(104105101) 
4:30 p.m.
An involution for the enumeration of alternating sign matrices.
Richard Brak*, The University of Melbourne
P. Fijn, The University of Melbourne
(104105117) 
5:00 p.m.
Enumeration opens the door: revealing the structure of the graph by counting bases of two matroids.
Marni Mishna, Simon Fraser University
Nancy Ann Neudauer*, Pacific University
Brett Stevens, Carleton University
(104105141)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Convex and Discrete Geometry and Asymptotic Analysis, II
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.
Geometry of sets of quantum maps.
Elisabeth M Werner*, Case Western Reserve University
Stanislaw Szarek, Case Western Reserve University
Karol Zyczkowsk, Jagiellonian University, Krakow
(104152122) 
3:30 p.m.
Uniform estimates for order statistics and Orlicz funvtions.
Carsten H Schuett*, ChristianAlbrechts University
Yehoram Gordon, Technion Haifa
Alexander Litvak, University of Alberta
Elisabeth M Werner, Case Western Reserve University
(104146245) 
4:00 p.m.
Random $\varepsilon$ nets and embeddings in $\ell^N_\infty$.
Yehoram Gordon, Technion,
Alexander Litvak, University of Alberta
Alain Pajor, Universite paris Est
Nicole TomczakJaegermann*, University of Alberta
(104146233) 
4:30 p.m.
Small ball probability estimates for logconcave measures.
Grigorios Paouris*, A&M University
(104152232) 
5:00 p.m.
Covering convex bodies by cylinders.
K. Bezdek, University of Calgary
A. E. Litvak*, University of Alberta
(104152173)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Knotting and Linking of Macromolecules, II
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

3:00 p.m.
Random knotting using the BFACF algorithm in constrained geometries.
Robert G Scharein*, Department of Mathematics, San Francisco State University
Mariel Vazquez, same as author #1
F Javier Arsuaga, same as author #1
Zoe Talbot, same as author #1
(104160283) 
3:30 p.m.
Predicting Knot or Link Type of SiteSpecific Recombination Products.
Dorothy Buck*, Imperial College London
Erica Flapan, Pomona College
(104192157) 
4:00 p.m.
Elastic polymer models for DNA: where they work and where they fail.
Graham L. Randall, Baylor College of Medicine, Houston, TX USA
Jonathan M. Fogg, Baylor College of Medicine, Houston, TX USA
Daniel J. Catanese, Baylor College of Medicine, Houston, TX USA
B. Montgomery Pettitt, University of Houston, Houston, TX
Lynn Zechiedrich*, Structural & Computational Biology & Molecular Biophysics, Molecular Virology & Microbiology, Baylor College of Medicine
(104192220) 
4:30 p.m.
DNA Looping in Topologically Constrained Domains.
Stephen D Levene*, University of Texas at Dallas
Andreas Hanke, University of Texas at Brownsville
(104192210) 
5:00 p.m.
How smooth is smooth enough?
Alexander Y Grosberg*, Department of Physics, New York University
(104160146)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on padic Groups and Automorphic Forms, II
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

3:00 p.m.
Supercuspidal characters and applications.
Jeffrey D Adler, American University
Stephen DeBacker, University of Michigan
Loren R Spice*, University of Michigan
(104122276) 
4:00 p.m.
Towards a lifting of representations of finite reductive groups, with applications to padic base change.
Jeffrey D. Adler*, American University
Joshua M. Lansky, American University
(10412282) 
5:00 p.m.
Twisted characters of depthzero supercuspidal representations of $\mathrm{GL}(n)$.
Jeremy Sylvestre*, University of Alberta, Augustana Campus
(104111255)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Combinatorial Representation Theory, II
Room 3, Woodward Building (Instructional Resources Center/IRC)
Organizers:
Sara C. Billey, University of Washington billey@math.washington.edu
Alexander S. Kleshchev, University of Oregon klesh@uoregon.edu
Stephanie Jane Van Willigenburg, University of British Columbia steph@math.ubc.ca

3:00 p.m.
Kicking the n! Theorem.
S Assaf*, MIT
(10410517) 
4:00 p.m.
Descent algebras for complex reflection groups.
Andrew Mathas, University of Sydney
Rosa Orellana*, Dartmouth
(104105134) 
5:00 p.m.
Filtrations of the q,tCatalan sequence.
Michael A Zabrocki*, York University
(104105228)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.4:50 p.m.
Special Session on Special Functions and Orthogonal Polynomials, II
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

3:00 p.m.
Pade Appropximation and the Riemann Zeta Function.
Peter Borwein*, Simon Fraser University
(104111166) 
3:30 p.m.
An efficient algorithm for the Hurwitz zeta and related functions.
Mark W Coffey*, Colorado School of Mines
(10413380) 
4:00 p.m.
Asymptotic analysis of Hermitetype polynomials.
Diego Dominici*, Technische Universität Berlin
(104133261) 
4:30 p.m.
Matrix valued orthogonal polynomials and inverse problems for networks.
F. Alberto Grunbaum*, Math Dept UC Berkeley
(104160184)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Algebraic Topology and Related Topics, II
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.
Homotopy periods.
Dev Sinha*, University of Oregon
Ben Walter, Purdue University
(10415528) 
3:30 p.m.
Derived smooth manifolds.
David I. Spivak*, University of Oregon
(10415527) 
4:00 p.m.
Motivic weights in the classical Adams spectral sequence.
Daniel Dugger*, University of Oregon
Daniel Isaksen, Wayne State University
(10415564) 
4:30 p.m.
Field Theories, String Topology, and Hochschild homology.
Ralph L Cohen*, Stanford University
(104155115) 
5:00 p.m.
Discussion

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Hilbert Functions and Free Resolutions, II
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

3:00 p.m.
Bounding Hilbert functions of fat point schemes.
Susan Cooper, University of Nebraska, Lincoln
Brian Harbourne, University of Nebraska, Lincoln
Zach Teitler*, Texas A&M University
(10411490) 
3:30 p.m.
Intersections of simplices with linear subspaces.
Brian Harbourne*, University of NebraskaLincoln
(10411457) 
4:00 p.m.
Asymptotic Growth of Generalized Symbolic Algebras.
S. Dale Cutkosky*, University of Missouri
Juergen Herzog, University of DuisburgEssen
Hema Srinivasan, University of Missouri
(10411393) 
4:30 p.m.
Standard decompositions.
Irena Peeva*, Cornell University
(10411347) 
5:00 p.m.
Resolution for a class of Homogeneous Gorenstein Algebras.
Hema Srinivasan*, University of Missouri
Sabine El Khoury, American University of Beiruit
(104113212)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Wavelets, Fractals, Tilings and Spectral Measures, II
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

3:00 p.m.
Multiresolution analyses with nonLebesgue spectrum.
Lawrence Baggett*, University of Colorado
Kathy Merrill, The Colorado College
Judith Packer, University of Colorado
(10414355) 
3:30 p.m.
Decomposing Dutkay's measure on the solenoid.
Judith A Packer*, University of Colorado at Boulder
(104128202) 
4:00 p.m.
On the Uniqueness of IFS Representation of a Cantor Set.
Yang Wang*, Department of Mathematics, Michigan State University
(104142209) 
4:30 p.m.
Moment matrices and integral operators, with application to IFS equilibrium measures.
Keri Kornelson*, University of Oklahoma
Palle Jorgensen, University of Iowa
Karen Shuman, Grinnell College
(104146257) 
5:00 p.m.
Spectral property of Bernoulli convolutions.
TianYau Hu, Math. Dept, University of WisconsinGreenbay, Greenbay, Wi 54311
KaSing Lau*, Mathematics .Department, The Chinese Univ of Hong Kong, HK
(10414288)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Noncommutative Algebra and Geometry, II
Room 310, Hugh Dempster Pavillion
Organizers:
Jason Bell, Simon Fraser University jpb@math.sfu.ca
James Zhang, University of Washington zhang@math.washington.edu

3:00 p.m.
Group actions and rational ideals.
Martin Lorenz*, Temple University
(10411630) 
3:30 p.m.
Graphs, Frobenius functionals, and the classical YangBaxter equation.
Anthony Giaquinto*, Loyola University Chicago
Murray Gerstenhaber, University of Pennsylvania
(104117264) 
4:00 p.m.
Koszulity of algebras with nonpure resolutions.
DiMing Lu*, Zhejiang University
(10411662) 
4:30 p.m.
Torsiontheoretic representations of generalized Weyl algebras.
Hans E Nordstrom*, University of Portland
(104116155) 
5:00 p.m.
Criteria for Noncommutative Ruledness.
Daniel Chan, University of New South Wales
Adam Nyman*, Western Washington University
(104114110)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:10 p.m.
Special Session on Probability and Statistical Mechanics, II
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

3:00 p.m.
Unravelling the bootstrap percolation paradox.
Alexander E Holroyd*, University of British Columbia
(104160205) 
3:30 p.m.
ForestRoot Formulas in Statistical Mechanics.
John Z Imbrie*, University of Virginia
(104182179) 
4:00 p.m.
Spatial Epidemics and Local Times for Critical Branching Random Walks in Dimensions 2 and 3.
Steven P Lalley*, University of Chicago
Xinghua Zheng, University of Chicago
(104160208) 
4:30 p.m.
Random Complexes and $\ell^2$Betti Numbers.
Russell D Lyons*, Indiana University
(104160111)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.4:40 p.m.
Special Session on Moduli Spaces and Singularity Theory, II
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

3:00 p.m.
$\Gamma$sectors of an orbifold, Euler characteristics, and vector fields.
Christopher W Seaton*, Rhodes College
Carla Farsi, University of Colorado at Boulder
(104122140) 
4:00 p.m.
Shafarevich hyperbolicity for families over higherdimensional base manifolds.
Sándor Kovács*, University of Washington
Stefan Kebekus, Universität zu Köln
(104114223)

3:00 p.m.

Saturday October 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on West End Number Theory, II
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

3:00 p.m.
A bound for the least prime ideal in the Chebotarev density problem.
Habiba Kadiri*, University of Lethbridge
Nathan Ng, University of Lethbridge
(104111203) 
3:30 p.m.
Nonvanishing of Lfunctions and an application to Fermat equations.
Nathan Ng*, University of Lethbridge
Michael Bennett, University of British Columbia
Jordan Ellenberg, University of Wisconsin
(104111227) 
4:00 p.m.
On the Diophantine equation $ax^2+by^3=cz^5$.
Sander R. Dahmen*, Department of Mathematics, the University of British Columbia / Simon Fraser University
(104111217) 
4:30 p.m.
Vertical SatoTate Conjecture.
Kaneenika Sinha*, PIMS/University of Alberta
(10411160) 
5:00 p.m.
On Permutation Polynomials.
Amir Akbary*, University of Lethbridge
(104111168)

3:00 p.m.

Saturday October 4, 2008, 3:15 p.m.4:40 p.m.
Contributed Paper Session
Room 1001, Forest Sciences Centre

3:15 p.m.
On Some Diophantine Identities.
Susil Kumar Jena*, KIIT University, Bhubaneswar, Orissa, India
(104111262) 
3:30 p.m.
Stirling numbers as linear combinations of binomial coefficients.
H Tsao*, Novato, California
(10411134) 
3:45 p.m.
A Fixed Point Theorem for Banach Spaces Which Satisfy Opial's Condition.
Rod Freed*, university of california irvine
(104146288) 
4:00 p.m.
CartanFefferman chains of SU(2)invariant CR structures on $S^3$.
Richard Montgomery, University of California at Santa Cruz
Alex L Castro*, University of California at Santa Cruz
(10413219) 
4:15 p.m.
Calculating the Standard Deviation for a Population from Subpopulation Summaries.
Craig M. Browne*, Edgewood, New Mexico
(10416215) 
4:30 p.m.
Astroid's total arc lengths on the positive Cartesian.
Necat Tasdelen*, Retiredmechanic
(10410509)

3:15 p.m.

Saturday October 4, 2008, 6:00 p.m.7:00 p.m.
Reception hosted by the Pacific Institute for the Mathematical Sciences (PIMS)
Pacific Spirit Place (Main Floor), Student Union Building