EVENT DETAILS AND ABSTRACT


Geometry/Physics Seminar

Title: Spin Hurwitz Numbers and TQFT
Speaker: Sam Gunningham
Speaker Info: NU
Brief Description:
Special Note:
Abstract:

Spin Hurwitz numbers count ramified covers of surfaces with a sign according to the Atiyah invariant of the covering surface. I will describe how to compute these numbers using ideas from TQFT, homotopy theory, and (spin) representation theory of the symmetric group.
Date: Thursday, May 10, 2012
Time: 4:00pm
Where: Lunt 107
Contact Person: Jesse Wolfson
Contact email: wolfson@math.northwestern.edu
Contact Phone:
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