AMS Sectional Meeting Program by Special Session
Current as of Tuesday, April 12, 2005 15:10:40
2002 Central Section Meeting
Ann Arbor, MI, March 13, 2002
Meeting #974
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Special Session on Algebraic Combinatorics

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Algebraic Combinatorics, I
Room 213, Dennison Building
Organizers:
Patricia Hersh, University of Michigan, Ann Arbor plhersh@math.lsa.umich.edu
Brian D. Taylor, Wayne State University bdt@math.wayne.edu

1:00 p.m.
Generalized associahedra.
Sergey Fomin*, University of Michigan
Andrei Zelevinsky, Northeastern University
(9740584) 
1:30 p.m.
Obstructions to shifted families.
Art Duval*, University of Texas at El Paso
John W. Shareshian, Washington University
(97405111) 
2:00 p.m.
Some Statistical Perspectives of a Path Counting Formula.
Devadatta Kulkarni*, Oakland University and GM R\&D
Ananda Sen, Oakland University
(97405262) 
2:30 p.m.
Remarks on some connections between symmetric functions and resultants.
Mercedes H. Rosas*, Universidad Simón Bolívar
(9740554) 
3:00 p.m.
Ordered planar trees and the slope variety of the complete graph.
Jeremy L Martin*, UC San Diego
(9740571) 
3:30 p.m.
The CastelnuovoMumford regularity of subspace arrangements.
Harm Derksen, University of Michigan
Jessica S Sidman*, University of Michigan
(9741366) 
4:00 p.m.
Some poset constructions motivated by commutative algebra.
Anders Bj\"orner, KTH (Kungl. Tekniska H\"ogskolan Stockholm)
Volkmar Welker*, PhilippsUniversit\"at Marburg
(97405149) 
4:30 p.m.
Cohomology of toric varieties from a combinatorial viewpoint.
EvaMaria E Feichtner*, ETH Zurich
(97452210)

1:00 p.m.

Saturday March 2, 2002, 8:30 a.m.11:20 a.m.
Special Session on Algebraic Combinatorics, II
Room 213, Dennison Building
Organizers:
Patricia Hersh, University of Michigan, Ann Arbor plhersh@math.lsa.umich.edu
Brian D. Taylor, Wayne State University bdt@math.wayne.edu

8:30 a.m.
Combinatorics of Resonances.
Dmitry N Kozlov*, University of Washington
(9740577) 
9:00 a.m.
Analogues of the Lie character for $GL_n(q)$.
John Shareshian*, Washington University, St. Louis
(97405193) 
9:30 a.m.
Polygraph arrangements.
Axel Hultman*, KTH, Stockholm
(9740538) 
10:00 a.m.
Permutation Enumeration by Pairs of Congruence Classes of Major Index.
Sheila Sundaram*, Danbury, CT
(97405107) 
10:30 a.m.
Contractible and spherehomotopic independence complexes.
Gabor Hetyei*, UNC Charlotte
Richard Ehrenborg, University of Kentucky
(9740529) 
11:00 a.m.
A random walk on zeroone contingency tables.
Diane Maclagan*, Stanford University
(97405125)

8:30 a.m.

Saturday March 2, 2002, 3:00 p.m.4:50 p.m.
Special Session on Algebraic Combinatorics, III
Room 213, Dennison Building
Organizers:
Patricia Hersh, University of Michigan, Ann Arbor plhersh@math.lsa.umich.edu
Brian D. Taylor, Wayne State University bdt@math.wayne.edu

3:00 p.m.
A weighted enumeration of maximal chains in the Bruhat order.
John R Stembridge*, University of Michigan
(9740528) 
3:30 p.m.
Skew Schubert Polynomials.
Cristian Lenart, SUNY Albany
Frank Sottile*, University of Massachusetts at Amherst
(9740545) 
4:00 p.m.
Properties of the Betti numbers of Schubert varieties.
Gregory S. Warrington*, University of Massachusetts at Amherst
(97405130) 
4:30 p.m.
Subword complexes in Coxeter groups.
Allen Knutson, UC Berkeley
Ezra Miller*, M.I.T.
(9740588)

3:00 p.m.

Sunday March 3, 2002, 10:00 a.m.12:50 p.m.
Special Session on Algebraic Combinatorics, IV
Room 213, Dennison Building
Organizers:
Patricia Hersh, University of Michigan, Ann Arbor plhersh@math.lsa.umich.edu
Brian D. Taylor, Wayne State University bdt@math.wayne.edu

10:00 a.m.
On the dual canonical basis of $U_q(n)$.
Bernard Leclerc*, Universite de Caen, France.
(9740542) 
10:30 a.m.
Sperner's Lemma and Representation Theory.
Peter M Magyar*, Michigan State University
(97405105) 
11:00 a.m.
A Tensor Product Theorem for Perfect Crystals.
Mark Shimozono*, Virginia Tech
(97405261) 
11:30 a.m.
A short simplicial hvector and the Upper Bound Theorem.
Patricia L Hersh, University of Michigan, Ann Arbor
Isabella Novik*, University of Washington
(9740549) 
12:00 p.m.
Quasisymmetric functions and Eulerian enumeration.
Louis J Billera, Cornell University
Samuel K Hsiao*, Cornell University
Stephanie van Willigenburg, Cornell University
(9740537) 
12:30 p.m.
Inequalities for Polytopes.
Richard Ehrenborg*, University of Kentucky
(9740521)

10:00 a.m.