AMS Sectional Meeting AMS Special Session

Current as of Sunday, October 27, 2013 00:27:01

Fall Central Sectional Meeting
Washington University, St. Louis, MO
October 18-20, 2013 (Friday - Sunday)
Meeting #1094

Georgia M. Benkart, AMS benkart@math.wisc.edu

• Saturday October 19, 2013, 9:00 a.m.-10:50 a.m.
  Special Session on Topological Combinatorics, I
  Room 112, Eads Hall
  Organizers:
  John Shareshian, Washington University in St. Louis shareshi@math.wustl.edu
  Russ Woodroofe, Mississippi State University
  

  • 9:00 a.m.
    A geometric interpretation of an Eulerian number identity.
    John Shareshian, Washington University
    Michelle L Wachs*, University of Miami
    (1094-05-391)
  • 9:30 a.m.
    On the free Lie algebra with $k$ compatible brackets and poset topology.
    Rafael S. González D'León*, University of Miami
    (1094-05-385)
  • 10:00 a.m.
    A poset, a graph, and some derangements.
    Bridget Tenner*, DePaul University
    (1094-05-91)
  • 10:30 a.m.
    A classification of the face numbers of Buchsbaum simplicial posets.
    Jonathan Browder, Aalto University
    Steven Klee*, Seattle University
    (1094-05-221)
• Saturday October 19, 2013, 2:30 p.m.-4:50 p.m.
  Special Session on Topological Combinatorics, II
  Room 112, Eads Hall
  Organizers:
  John Shareshian, Washington University in St. Louis shareshi@math.wustl.edu
  Russ Woodroofe, Mississippi State University
  

  • 2:30 p.m.
    Fibers in total positivity.
    James Davis, Indiana University-Bloomington
    Patricia Hersh*, North Carolina State University
    Ezra Miller, Duke University
    (1094-05-210)
  • 3:00 p.m.
    Hyperoctahedral Eulerian Idempotents, Hodge Decompositions, and Signed Graph Coloring Complexes.
    Benjamin Braun*, University of Kentucky
    Sarah Crown Rundell, Denison University
    (1094-05-107)
  • 3:30 p.m.
    Peterson Varieties: A Uniform Giambelli's Formula.
    Elizabeth Drellich*, University of Massachuestts, Amherst
    (1094-05-126)
  • 4:00 p.m.
    Divided difference operators for regular semisimple Hessenberg varieties.
    Nicholas Teff*, Grinnell College
    (1094-05-275)
  • 4:30 p.m.
    Manifold arrangements.
    Richard Ehrenborg*, University of Kentucky
    Margaret A. Readdy, University of Kentucky
    (1094-05-276)
• Sunday October 20, 2013, 9:00 a.m.-11:50 a.m.
  Special Session on Topological Combinatorics, III
  Room 112, Eads Hall
  Organizers:
  John Shareshian, Washington University in St. Louis shareshi@math.wustl.edu
  Russ Woodroofe, Mississippi State University
  

  • 9:00 a.m.
    A Bredon cohomology approach to the blockwise Alperin Weight Conjecture.
    Stephen D Smith*, University of Illinois at Chicago
    (1094-20-59)
  • 9:30 a.m.
    Combinatorics of the shard intersection order of a Coxeter group.
    Kyle Petersen*, DePaul University
    (1094-05-31)
  • 10:00 a.m.
    Weighted spanning enumerators of color-shifted simplicial complexes.
    Ghodratollah Aalipour, Sharif University of Technology
    Art Duval*, University of Texas at El Paso
    (1094-05-289)
  • 10:30 a.m.
    The cocritical group of a cell complex.
    Art M Duval, University of Texas, El Paso
    Caroline J Klivans, Brown University
    Jeremy L Martin*, University of Kansas
    (1094-05-368)
  • 11:00 a.m.
    Polynomials for $GL_p\times GL_q$ orbit closures in the flag variety.
    Benjamin J. Wyser, University of Illinois at Urbana-Champaign
    Alexander Yong*, University of Illinois at Urbana-Champaign
    (1094-05-169)
  • 11:30 a.m.
    Discussion