AMS Sectional Meeting Program by Special Session

Current as of Sunday, October 14, 2007 00:27:36

Associate secretaries:
Lesley M Sibner, AMS lsibner@duke.poly.edu

Saturday October 6, 2007, 9:00 a.m.-10:50 a.m.
Special Session on Invariants of Lie Group Actions and Their Quotients, I
Room 116, Scott Hall
Organizers:
Tara S. Holm, Cornell University tsh@math.cornell.edu
Rebecca F. Goldin, George Mason University rgoldin@math.gmu.edu
- 9:00 a.m.
  Kirwan surjectivity for Hamiltonian LG-spaces in K-theory.
  Megumi Harada*, McMaster University
  Paul Selick, University of Toronto
  (1031-51-39)
- 9:30 a.m.
  Symplectic actions of two\--tori on four\--manifolds.
  Alvaro Pelayo*, Massachusetts Institute of Technology
  (1031-58-92)
- 10:00 a.m.
  Torsion and abelianization in equivariant cohomology and equivariant Chow theory.
  Tara S. Holm, Cornell University
  Reyer Sjamaar*, Cornell University
  (1031-55-33)
- 10:30 a.m.
  On the $S^1-$equivariant cohomology of a compact symplectic manifold.
  Silvia Sabatini*, Massachusetts Institute of Technology
  (1031-53-81)

Saturday October 6, 2007, 3:00 p.m.-4:50 p.m.
Special Session on Invariants of Lie Group Actions and Their Quotients, II
Room 116, Scott Hall
Organizers:
Tara S. Holm, Cornell University tsh@math.cornell.edu
Rebecca F. Goldin, George Mason University rgoldin@math.gmu.edu
- 3:00 p.m.
  The Stringy Algebraic Structures on Orbifolds and Topological Field Theory.
  Takashi Kimura*, Boston University
  (1031-53-133)
- 3:30 p.m.
  Gauged Gromov-Witten invariants on surfaces with cylindrical ends.
  Eduardo Gonzalez*, Rutgers University
  Chris Woodward, Rutgers University
  (1031-53-101)
- 4:00 p.m.
  Equivariant Gromov-Witten theory: quantum Martin formula and quantum Kirwan map.
  Chris T Woodward*, Rutgers New Brunswick
  Eduardo Gonzalez, Rutgers New Brunswick
  (1031-58-52)
- 4:30 p.m.
  Twisted cohomology for differentiable stacks.
  Ping Xu*, Penn State University
  Jean-Louis Tu, Universite Metz
  (1031-53-106)

Sunday October 7, 2007, 9:00 a.m.-10:50 a.m.
Special Session on Invariants of Lie Group Actions and Their Quotients, III
Room 116, Scott Hall
Organizers:
Tara S. Holm, Cornell University tsh@math.cornell.edu
Rebecca F. Goldin, George Mason University rgoldin@math.gmu.edu
- 8:30 a.m.
  Quantum K-theory of Grassmannians.
  Anders S. Buch*, Rutgers University
  Leonardo C. Mihalcea, Duke University
  (1031-14-118)
- 9:00 a.m.
  Number Theory from Atiyah-Bott for Orbifolds.
  Ana Cannas da Silva*, Princeton University
  (1031-53-130)
- 9:30 a.m.
  A New Proof of a Positive Formula for Equivariant Schubert Classes.
  Catalin Zara*, University of Massachusetts Boston
  (1031-05-122)
- 10:00 a.m.
  Polytope decompositions.
  Leonor Godinho*, Instituto Superior Tecnico
  Jose Agapito, CAMGSD- Instituto Superior Tecnico
  (1031-53-80)
- 10:30 a.m.
  Equivariant classes of matroid realization spaces.
  Richard Rimanyi*, University of North Carolina at Chapel Hill
  (1031-14-104)

Sunday October 7, 2007, 3:00 p.m.-4:20 p.m.
Special Session on Invariants of Lie Group Actions and Their Quotients, IV
Room 116, Scott Hall
Organizers:
Tara S. Holm, Cornell University tsh@math.cornell.edu
Rebecca F. Goldin, George Mason University rgoldin@math.gmu.edu
- 3:00 p.m.
  Geometric vertex decompositions of Schubert varieties.
  Allen Knutson*, University of California, San Diego
  (1031-14-76)
- 3:30 p.m.
  Smoothness and Rational Smoothness for Schubert Varieties in Affine Grassmannians.
  Sara C. Billey*, University of Washington
  Stephen A. Mitchell, University of Washington
  (1031-22-71)
- 4:00 p.m.
  Schubert combinatorics.
  Alexander T Yong*, University of Minnesota, Dept. of Math.
  Hugh Thomas, University of New Brunswick
  (1031-05-37)

Inquiries: meet@ams.org