AMS Sectional Meeting Program by Special Session
Current as of Saturday, April 12, 2008 00:23:32
2008 Spring Central Section Meeting
Bloomington, IN, April 56, 2008 (Saturday  Sunday)
Meeting #1038
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Special Session on Combinatorial Representation Theory, Topological Combinatorics, and Interactions Between Them

Saturday April 5, 2008, 8:30 a.m.10:50 a.m.
Special Session on Combinatorial Representation Theory, Topological Combinatorics, and Interactions Between Them, I
Room 217, Ballantine Hall
Organizers:
Patricia Hersh, Indiana University phersh@indiana.edu
Cristian P. Lenart, State University of New York at Albany lenart@albany.edu
Michelle Wachs, University of Miami wachs@math.miami.edu

8:30 a.m.
The complete {\bf cd}index of a Bruhat interval.
Louis J. Billera*, Cornell University
(103805148) 
9:30 a.m.
Bruhat order structure via permutation patterns.
Bridget Eileen Tenner*, DePaul University
(10380552) 
10:00 a.m.
The numbers game and Dynkin diagram classification results.
Robert G. Donnelly*, Murray State University
(103805138) 
10:30 a.m.
Sorting orders on finite reflection groups and quotientclosed subcategories of representations of quivers.
Drew Armstrong, University of Minnesota
Hugh Thomas*, University of New Brunswick
(103805130)

8:30 a.m.

Saturday April 5, 2008, 2:30 p.m.5:45 p.m.
Special Session on Combinatorial Representation Theory, Topological Combinatorics, and Interactions Between Them, II
Room 217, Ballantine Hall
Organizers:
Patricia Hersh, Indiana University phersh@indiana.edu
Cristian P. Lenart, State University of New York at Albany lenart@albany.edu
Michelle Wachs, University of Miami wachs@math.miami.edu

2:30 p.m.
Smooth and palindromic Schubert varieties in affine Grassmannians.
Stephen A. Mitchell*, University of Washington (Seattle)
Sara C. Billey, University of Washington (Seattle)
(10380520) 
3:30 p.m.
Schubert Polynomials for the affine Grassmannian of the symplectic group.
Thomas Lam, Harvard
Anne Schilling*, UC Davis
Mark Shimozono, Virginia Tech
(10380523) 
4:00 p.m.
Geometric representations through Springer fibers and related varieties.
Julianna Tymoczko*, University of Iowa
(103814346) 
4:30 p.m.
Singular sensations in the KGB picture.
William M. McGovern*, University of Washington
(10382212) 
5:00 p.m.
Cluster algebras associated with bordered surfaces.
Sergey Fomin*, University of Michigan
Michael Z. Shapiro, Michigan State University
Dylan P. Thurston, Barnard College, Columbia University
(103805176)

2:30 p.m.

Sunday April 6, 2008, 8:30 a.m.10:50 a.m.
Special Session on Combinatorial Representation Theory, Topological Combinatorics, and Interactions Between Them, III
Room 217, Ballantine Hall
Organizers:
Patricia Hersh, Indiana University phersh@indiana.edu
Cristian P. Lenart, State University of New York at Albany lenart@albany.edu
Michelle Wachs, University of Miami wachs@math.miami.edu

8:30 a.m.
The Cyclic Sieving Phenomenon, Jeudetaquin Promotion, and Representation Theory.
Brendon Rhoades*, University of Minnesota
(103805143) 
9:00 a.m.
Generalized degree sequences and plethysm.
Caroline J Klivans*, University of Chicago
Vic Reiner, University of Minnesota
(103805122) 
9:30 a.m.
Parabolic KazhdanLusztig and Rpolynomials for quasiminuscule quotients.
Francesco Brenti*, Universita' di Roma ``Tor Vergata''
(103805320) 
10:30 a.m.
Webs and promotion.
Pavlo Pylyavskyy*, University of Michigan, Ann Arbor
(103805116)

8:30 a.m.

Sunday April 6, 2008, 2:30 p.m.5:50 p.m.
Special Session on Combinatorial Representation Theory, Topological Combinatorics, and Interactions Between Them, IV
Room 217, Ballantine Hall
Organizers:
Patricia Hersh, Indiana University phersh@indiana.edu
Cristian P. Lenart, State University of New York at Albany lenart@albany.edu
Michelle Wachs, University of Miami wachs@math.miami.edu

2:30 p.m.
From total positivity to positroids (via the Grassmannian, the Bruhat order, and pattern avoidance).
Alexander Postnikov*, MIT
(103805259) 
3:30 p.m.
Discrete Morse theory and the totally nonnegative part of G/P.
Lauren K Williams*, Harvard University
(103805161) 
4:00 p.m.
A quantization of a theorem of Goulden and Jackson.
Matjaz Konvalinka, MIT
Mark Skandera*, Lehigh University
(103805271) 
4:30 p.m.
The Rees product of the cubical lattice with the chain.
Patricia Muldoon, University of Kentucky
Margaret A. Readdy*, University of Kentucky
(103805215) 
5:00 p.m.
Exponential Dowling structures.
Richard Ehrenborg*, University of Kentucky
Margaret Readdy, University of Kentucky
(103805291) 
5:30 p.m.
Inversion arrangements and lower intervals in the Bruhat order.
Axel Hultman, KTH, Stockholm
Svante Linusson, KTH, Stockholm
John Shareshian*, Washington University
Jonas Sj\"ostrand, KTH, Stockholm
(103805324)

2:30 p.m.