Geometry and Topology Seminar

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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)

A plethora of exotic Stein manifolds

Yong-Geun
March 4 David Massey (Northeastern)

TBA

Maxim
March 11 Danny Calegari (Cal Tech))

TBA

Yong-Geun
May 6 Alex Suciu (Northeastern)

TBA

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


Fall-2010-Geometry-Topology