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Seminars During Academic Year 2003-04

Fall 2003

Wednesday November 5, 2003 in Rawles Hall 104
Razvan Gelca, Recursive Relations of Colored Jones Polynomials
Wednesday November 12, 2003 in Rawles Hall 104
Jim Davis, Fixity and Free Group Actions on Products of Spheres

Spring 2004

Wednesday February 18, 2004 in Rawles Hall 104
Shmuel Weinberger, Manifolds with Excessive Symmetry
Thursday March 4, 2004 in Rawles Hall 104
Taehee Kim, Filtrations of knots and knot concordance

A report on recent joint work withTim Cochran.

Wednesday March 10, 2004 in Rawles Hall 104
Diarmuid Crowley, Recognizing open subsets of the n-sphere

I will report on joint work in progress with Steve Ferry which aims to characterise those open manifolds which are the compliments of finite polyhedrons K in S^n (assuming for now that K is simply connected and that 2k + 2 < n). The talk will rapidly move to measuring the twistedness of twisted doubles and the relationship of this to high codimension link theory (a la Sato and Levine).

Tuesday April 6, 2004 in RH 316
Jerry Kaminker, Amenability and the Novikov conjecture
Wednesday April 14, 2004 in Rawles Hall 104
Noah Salvaterra, Khovanov Homology
Wednesday April 21, 2004 in Rawles Hall 104
Allan Edmonds, Surfaces in the 3-torus

I will characterize those maps of a closed surface to the 3-torus that are homotopic to embeddings.

Monday May 3, 2004 in Probably RH 104
Oleg Viro, Algebraic Knot Theory
Friday May 14, 2004 in Rawles Hall 104
W. Jaco, The Homeomorphism Problem for 3-Manifolds

The solution to the homeomorphism problem for 3-manifolds will be presented–there is now an algorithm to determine whether two given 3-manifolds are homeomorphic.

Friday May 21, 2004 in Rawles Hall 104
Diarmuid Crowley, The inertia groups of HP^2

I shall present a computation of the group of isotopies of quaternionic projective space (up to a Z/2 ambiguity). Along the way, I will explain how this fits into a broader framework for manifold classification and also give an explicit representative for an exotic self-diffeomorphism of S^7.

Thursday May 27, 2004 in Rawles Hall 104
Tobia Hagge, The necessity of Reidemeister move II
Friday May 28, 2004 in Rawles Hall 104
Kiyoshi Igusa, Semi-invariants, pictures and the homology of nilpotent groups
Thursday June 3, 2004 in Rawles Hall 104
Cornelia Van Cott, From Seifert circles to braids