AMS Sectional Meeting Program by Special Session

Current as of Saturday, April 12, 2008 00:23:32

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

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
  (1038-05-148)
- 9:30 a.m.
  Bruhat order structure via permutation patterns.
  Bridget Eileen Tenner*, DePaul University
  (1038-05-52)
- 10:00 a.m.
  The numbers game and Dynkin diagram classification results.
  Robert G. Donnelly*, Murray State University
  (1038-05-138)
- 10:30 a.m.
  Sorting orders on finite reflection groups and quotient-closed subcategories of representations of quivers.
  Drew Armstrong, University of Minnesota
  Hugh Thomas*, University of New Brunswick
  (1038-05-130)

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)
  (1038-05-20)
- 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
  (1038-05-23)
- 4:00 p.m.
  Geometric representations through Springer fibers and related varieties.
  Julianna Tymoczko*, University of Iowa
  (1038-14-346)
- 4:30 p.m.
  Singular sensations in the KGB picture.
  William M. McGovern*, University of Washington
  (1038-22-12)
- 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
  (1038-05-176)

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, Jeu-de-taquin Promotion, and Representation Theory.
  Brendon Rhoades*, University of Minnesota
  (1038-05-143)
- 9:00 a.m.
  Generalized degree sequences and plethysm.
  Caroline J Klivans*, University of Chicago
  Vic Reiner, University of Minnesota
  (1038-05-122)
- 9:30 a.m.
  Parabolic Kazhdan-Lusztig and R-polynomials for quasi-minuscule quotients.
  Francesco Brenti*, Universita' di Roma ``Tor Vergata''
  (1038-05-320)
- 10:30 a.m.
  Webs and promotion.
  Pavlo Pylyavskyy*, University of Michigan, Ann Arbor
  (1038-05-116)

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
  (1038-05-259)
- 3:30 p.m.
  Discrete Morse theory and the totally non-negative part of G/P.
  Lauren K Williams*, Harvard University
  (1038-05-161)
- 4:00 p.m.
  A quantization of a theorem of Goulden and Jackson.
  Matjaz Konvalinka, MIT
  Mark Skandera*, Lehigh University
  (1038-05-271)
- 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
  (1038-05-215)
- 5:00 p.m.
  Exponential Dowling structures.
  Richard Ehrenborg*, University of Kentucky
  Margaret Readdy, University of Kentucky
  (1038-05-291)
- 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
  (1038-05-324)

Inquiries: meet@ams.org