Mon, 25 Oct 2010

12:00 - 13:00
L3

On the gravity duals of N=2 superconformal field theories

Ron Reid-Edwards
(Oxford)
Abstract
In 2009 Gaiotto and Maldacena demonstrated that the challenge of finding gravitational descriptions of N=2 superconformal field theories could, under certain circumstances, be reduced to a simple two-dimensional electrostatics problem. In this talk I will review their work and discuss recent progress in finding and interpreting such solutions in string and M-theory.
Mon, 08 Nov 2010

15:45 - 16:45

The fundamental group of $\text{ Hom}(\bb Z^k,G)$

Alexandra Pettet
(Oxford)
Abstract

Let $G $ be a compact Lie group, and consider the variety $\text {Hom} (\bb Z^k,G)$

of representations of the rank $k$ abelian free group $\bb Z^k$ into $G$. We prove

that the fundamental group of $\text {Hom} (\bb Z^k,G) $ is naturally isomorphic to direct

product of $k$ copies of the fundamental group of $G$. This is joint work with

Jose Manuel Gomez and Juan Souto.

Mon, 22 Nov 2010

15:45 - 16:45
L3

tba

Nicholas Touikan
(Oxford)
Subscribe to Oxford