AMS Sectional Meeting Program by Special Session

Current as of Saturday, October 13, 2007 00:36:29

Associate secretaries:
Susan J Friedlander, AMS susan@math.northwestern.edu

Friday October 5, 2007, 9:00 a.m.-10:50 a.m.
Special Session on Geometric Combinatorics, I
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu
- 9:00 a.m.
  On sequentially Cohen-Macaulay complexes and posets.
  Anders Bjorner, Royal Institute of Technology, Stockholm
  Michelle L. Wachs*, University of Miami
  Volkmar Welker, Marburg University, Germany
  (1030-05-413)
- 9:30 a.m.
  Matroid base polytope decompositions and quasisymmetric functions.
  Kurt W. Luoto*, University of Washington, Seattle, WA
  (1030-05-182)
- 10:00 a.m.
  Zonotopes of Line Shellings of Polytopes.
  Catherine Stenson*, Juniata College
  (1030-52-349)
- 10:30 a.m.
  Tropical hyperplane arrangements and oriented matroids.
  Federico Ardila*, San Francisco State University
  Mike Develin, American Institute of Mathematics
  (1030-52-172)

Friday October 5, 2007, 2:30 p.m.-4:50 p.m.
Special Session on Geometric Combinatorics, II
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu
- 2:30 p.m.
  Face numbers of simplicial manifolds.
  Isabella Novik*, Department of Mathematics, University of Washington
  Edward B Swartz, Department of Mathematics, Cornell University
  (1030-05-305)
- 3:00 p.m.
  Closed geodesics and quasi-geodesics on convex surfaces.
  Igor Pak*, MIT
  (1030-52-194)
- 3:30 p.m.
  Convex hull realizations of the multiplihedra.
  Stefan A. Forcey*, Tennessee State University
  (1030-05-44)
- 4:00 p.m.
  A simplicial matrix-tree theorem, I. General results.
  Art M Duval, University of Texas, El Paso
  Caroline Klivans, University of Chicago
  Jeremy L Martin*, University of Kansas
  (1030-05-143)
- 4:30 p.m.
  A Simplicial matrix-tree theorem, II. Examples.
  Art Duval*, University of Texas at El Paso
  Caroline J. Klivans, University of Chicago
  Jeremy L. Martin, University of Kansas
  (1030-05-101)

Saturday October 6, 2007, 9:00 a.m.-10:50 a.m.
Special Session on Geometric Combinatorics, III
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu
- 9:00 a.m.
  Multiplicity free expansions of Schur P functions.
  S van Willigenburg*, University of British Columbia
  (1030-05-58)
- 9:30 a.m.
  The h-vector of a Lattice Path Matroid.
  Jay Schweig*, Cornell University
  (1030-05-299)
- 10:00 a.m.
  Matching polytopes, toric geometry, and the nonnegative part of the Grassmannian.
  Alex Postnikov, MIT
  David Speyer, MIT
  Lauren Williams*, Harvard
  (1030-05-180)
- 10:30 a.m.
  Face vectors of flag complexes.
  Andrew D. Frohmader*, University of Washington
  (1030-05-345)

Saturday October 6, 2007, 2:30 p.m.-4:50 p.m.
Special Session on Geometric Combinatorics, IV
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu
- 2:30 p.m.
  Discussion
- 3:00 p.m.
  Higher-order non-Euclidean oriented matroid programs and triangulations.
  Laura Anderson*, Binghamton University
  (1030-05-220)
- 3:30 p.m.
  Affine and toric hyperplane arrangements.
  Margaret A. Readdy*, University of Kentucky
  Richard Ehrenborg, University of Kentucky
  Michael Slone, University of Kentucky
  (1030-05-93)
- 4:00 p.m.
  The Steinberg torus and affine descents.
  T. Kyle Petersen*, University of Michigan
  (1030-05-105)
- 4:30 p.m.
  The discrete fundamental group of the associahedron.
  Helene Barcelo*, Arizona State University
  Christopher Severs, Arizona State University
  (1030-05-346)

Inquiries: meet@ams.org