Geometry and Topology Seminar
Contents
Spring 2011
The seminar will be held in room B901 of Van Vleck Hall on Fridays from 1:20pm - 2:10pm
date | speaker | title | host(s) |
---|---|---|---|
January 21 | Mohammed Abouzaid (Clay Institute & MIT) | Yong-Geun | |
March 4 | David Massey (Northeastern) |
Lê Numbers and the Topology of Non-isolated Hypersurface Singularities |
Maxim |
March 11 | Danny Calegari (Cal Tech)) | Yong-Geun | |
May 6 | Alex Suciu (Northeastern) | Maxim |
Abstracts
Mohammed Abouzaid (Clay Institute & MIT)
A plethora of exotic Stein manifolds
In real dimensions greater than 4, I will explain how a smooth manifold underlying an affine variety admits uncountably many distinct (Wein)stein structures, of which countably many have finite type, and which are distinguished by their symplectic cohomology groups. Starting with a Lefschetz fibration on such a variety, I shall per- form an explicit sequence of appropriate surgeries, keeping track of the changes to the Fukaya category and hence, by understanding open-closed maps, obtain descriptions of symplectic cohomology af- ter surgery. (joint work with P. Seidel)
David Massey (Northeastern)
TBA
Danny Calegari (Cal Tech)
TBA
Alex Suciu (Northeastern)
TBA