Topology & Geometric Group Theory Seminar

Topology & Geometric Group Theory Seminar

List of Talks given in 2007-08

Tuesday, September 4   Roland Roeder, University of Toronto
Computing arithmetic invariants for hyperbolic reflection groups
Tuesday, September 11   Ken Brown, Cornell University
Automorphisms of buildings have infinite displacement
Tuesday, September 18   Kasra Rafi, University of Connecticut
The curve complex is rigid
Tuesday, September 25   Brad Forrest, Cornell University
Degree subcomplexes of Auter space
Tuesday, October 2   Laurent Bartholdi, École Polytechnique Federale de Lausanne
Amenable groups and algebras
Tuesday, October 9   Alireza Golsefidy, Princeton University
Lattices with small covolume
Tuesday, October 16   Uzy Hadad, Hebrew University
Uniform Kazhdan constant for some families of linear groups
Tuesday, October 23   Reyer Sjamaar, Cornell University
Divided difference operators in equivariant cohomology
Tuesday, October 30   Yvonne Lai, University of California at Davis
Using simplicial trees to generate an effective compactness theorem for Coxeter groups
Tuesday, November 6   Allen Knutson, University of California, San Diego
Schubert calculus and geometric shifting: combinatorics meets combinatorics, via geometry
Tuesday, November 13   Bogdan Petrenko, SUNY Brockport
Some formulas for the smallest number of generators for finite direct sums of matrix algebras
Thursday, November 15   Tony Bahri, Rider University
Piecewise polynomials and the equivariant cohomology of weighted projective spaces
Tuesday, November 20   Vesselin Drensky, Bulgarian Academy of Sciences
Automorphisms and derivations of polynomial and free associative algebras
Tuesday, November 27   Martin Kassabov, Cornell University
Generating polycyclic groups
Tuesday, February 5   Danny Calegari, California Institute of Technology
Stable commutator length is rational in free groups
Tuesday, February 12   José Burillo, Universitat Politécnica de Catalunya
Commensurators and finite-index subgroups of Thompson's group F
Tuesday, February 19   Anne Thomas, Cornell University
Existence, covolumes, and commensurators of lattices acting on polyhedral complexes
Tuesday, February 26   Seonhee Lim, Cornell University
Volume entropy rigidity for hyperbolic buildings
Tuesday, March 4   Corinna Ulcigrai, University of Bristol
On the ergodic properties of multi-valued Hamiltonian flows
Thursday, March 6   Peter Abramenko, University of Virginia
Finiteness properties of some discrete groups
Tuesday, March 11   Alireza Golsefidy, Princeton University
Translates of horospherical measures and counting problems
Tuesday, April 1   Tomoo Matsumura, Max Planck Institute
The stringy cohomology of symmetric product of an orbifold
Tuesday, April 8   Bronlyn Wassink, Binghamton University
Finite-index subgroups of Thompson's group F
Tuesday, April 15   Jason Manning, University at Buffalo
Geometric Dehn filling of high-dimensional hyperbolic manifolds
Tuesday, April 22   Karen Vogtmann, Cornell University
Automorphism groups of right-angled Artin groups
Tuesday, April 29   Tara Holm, Cornell University
Introduction to symplectic geometry