October 10, 2006

Talks by Hopkins and Willerton

Posted by Urs Schreiber

Since I already announced our next colloquium talk # I might just as well mention a few other interesting upcoming events - at least for those who spend the next month or so in central Europe.

• In the context of the Andrejewski lecture series, Michael Hopkins gives a series of lectures on Topological aspects of topological field theory at the math institute of Universität Göttingen, consisting of three talks

• Tuesday 24. October, Introduction to topological field theories
• Wednesday 25. October, Topological methods in topological field theories
• Thursday 26. October, The Wess-Zumino-Witten conformal blocks
I hope to be there at least Wednesday and Thursday.
• In the first of next semester’s colloquium of our Center for Mathematical Physics, Simon Willerton will talk about Gerbes, groupoids and Dijkgraaf-Witten theory, from the point of view of higher categories along the lines of Freed’s approach; November 9, here in Hamburg.

See for instance

S. Willerton
The twisted Drinfeld double of a finite group via gerbes and finite groupoids
math.QA/0503266

Posted at October 10, 2006 7:19 PM UTC

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Read the post Hopkins Lecture on TFT: Introduction and Outlook
Weblog: The n-Category Café
Excerpt: Introductory lecture by M. Hopkins on topological field theory.
Tracked: October 25, 2006 11:15 AM
Read the post Hopkins Lecture on TFT: Infinity-Category Definition
Weblog: The n-Category Café
Excerpt: In the second part of his lecture on topological field theory (notes on the first part were reproduced here) Michael Hopkins sketched what he currently sees as the emerging picture for the $n$-tiered (aka "extended") formulation of the definition of...
Tracked: October 25, 2006 9:49 PM
Read the post WZW as Transition 1-Gerbe of Chern-Simons 2-Gerbe
Weblog: The n-Category Café
Excerpt: How the WZW 1-gerbe arises as the transition 1-gerbe of the Chern-Simons 2-gerbe.
Tracked: October 29, 2006 5:15 PM

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