AMS Sectional Meeting Program by Special Session

Current as of Tuesday, April 12, 2005 15:09:57

Associate secretaries:
Robert J Daverman, AMS daverman@math.utk.edu

Friday March 12, 1999, 8:30 a.m.-10:50 a.m.
Special Session on Algebraic and Geometric Combinatorics, I
Room 207, W. W. Little Hall
Organizers:
Andrew J. Vince, University of Florida vince@math.ufl.edu
Neil L. White, University of Florida white@math.ufl.edu
- 8:30 a.m.
  Counting Points on Varieties over Finite Fields Related to a Conjecture of Kontsevich.
  John R Stembridge*, University of Michigan
  (940-05-87)
- 9:00 a.m.
  Short rational functions .
  Alexander Barvinok*, University of Michigan
  (940-05-241)
- 9:30 a.m.
  A Homotopy Equivalence for Set Partitions related to Liftings of $S_{n-1}$-modules to $S_n$.
  Sheila Sundaram*, Danbury, CT
  (940-05-84)
- 10:00 a.m.
  The Hilbert Series of A Ladder Determinantal Ideal.
  Ian P. Goulden, University of Waterloo,Waterloo,Ontario
  Devadatta M. Kulkarni*, Oakland University, Rochester, Michigan
  (940-05-276)
- 10:30 a.m.
  Matroid automorphisms and symmetry groups.
  Lori Fern, SUNY at Binghamton
  Gary P Gordon*, Lafayette College
  Jason Leasure, University of Texas
  Sharon Pronchik, lmco
  (940-05-59)

Friday March 12, 1999, 2:30 p.m.-5:50 p.m.
Special Session on Algebraic and Geometric Combinatorics, II
Room 207, W. W. Little Hall
Organizers:
Andrew J. Vince, University of Florida vince@math.ufl.edu
Neil L. White, University of Florida white@math.ufl.edu
- 2:30 p.m.
  Symplectic matroids the easy way.
  Timothy Y Chow*, Tellabs Research Center
  (940-05-143)
- 3:00 p.m.
  Recognizing Schubert Cells.
  Sergey Fomin*, M.I.T.
  Andrei V Zelevinsky, Northeastern University
  (940-05-190)
- 3:30 p.m.
  Double Bruhat cells and groups generated by symplectic transvections.
  Andrei V. Zelevinsky*, Northeastern University
  (940-05-232)
- 4:00 p.m.
  The singular locus of a Schubert variety.
  Vesselin N. Gasharov*, Cornell University
  (940-05-258)
- 4:30 p.m.
  Boolean Term Orders and the Root System $B_n$.
  Diane M Maclagan*, University of California, Berkeley
  (940-05-310)
- 5:00 p.m.
  Brownian motion in a Weyl chamber, non-colliding particles, and random matrices.
  David J. Grabiner*, University of Michigan
  (940-60-242)
- 5:30 p.m.
  Index of parabolic subalgebras of $GL(n)$ and {\it meanders}.
  Vladimir Dergachev*, University of Pennsylvania
  Alexandre Kirillov, University of Pennsylvania
  (940-22-140)

Saturday March 13, 1999, 8:00 a.m.-10:50 a.m.
Special Session on Algebraic and Geometric Combinatorics, III
Room 207, W. W. Little Hall
Organizers:
Andrew J. Vince, University of Florida vince@math.ufl.edu
Neil L. White, University of Florida white@math.ufl.edu
- 8:00 a.m.
  Inequalities for the ${\bf cd}$-index.
  Richard G. Ehrenborg*, Institute for Advanced Study
  Louis J. Billera, Cornell University
  (940-05-269)
- 8:30 a.m.
  Interior faces of subdivisions of the simplex.
  Margaret M Bayer*, University of Kansas
  (940-52-168)
- 9:00 a.m.
  A Topological Classification of Regular Polytopes.
  Egon Schulte*, Northeastern University
  (940-51-272)
- 9:30 a.m.
  A space of tetrahedra .
  Eric K Babson*, University of Washington
  Paul Gunnells, Columbia University
  Richard Scott, Santa Clara University
  (940-05-360)
- 10:00 a.m.
  Polytopal bundles.
  Laura Anderson*, Texas A&M University
  Nikolai Mnev, Steklov Institute
  (940-05-354)
- 10:30 a.m.
  Systems of parameters for cubical complexes.
  Margaret A. Readdy*, Institute for Advanced Study
  (940-05-224)

Saturday March 13, 1999, 2:30 p.m.-5:20 p.m.
Special Session on Algebraic and Geometric Combinatorics, IV
Room 207, W. W. Little Hall
Organizers:
Andrew J. Vince, University of Florida vince@math.ufl.edu
Neil L. White, University of Florida white@math.ufl.edu
- 2:30 p.m.
  The $k$-consecutive Arrangements.
  Bruce E. Sagan*, Department of Mathematics, Michigan State University, East Lansing, MI, 48824-1027
  William Brockman, Department of Mathematics, Michigan State University, East Lansing, MI, 48824-1027
  (940-05-25)
- 3:00 p.m.
  A combinatorial proof of the log-concavity of the numbers of permutations with $k$ runs.
  Mikl\'os B\'ona*, IAS
  Richard Ehrenborg, IAS
  (940-05-45)
- 3:30 p.m.
  The intersection lattice of a discriminantal arrangement.
  Christos A Athanasiadis*, Instructor
  (940-05-111)
- 4:00 p.m.
  Aztec dungeons and powers of 13.
  Mihai A Ciucu*, Georgia Institute of Technology
  (940-05-262)
- 4:30 p.m.
  Graphical generalizations of the sieve formula.
  Gabor Hetyei*, University of Kansas
  (940-05-64)
- 5:00 p.m.
  Pieri Operators on Posets.
  Nantel Bergeron, York University
  Stefan Mykytiuk, York University
  Frank Sottile*, University of Wisconsin
  Stephanie van Willigenburg, York University
  (940-05-74)

Inquiries: meet@ams.org