From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/4833 Path: news.gmane.org!not-for-mail From: John Baez Newsgroups: gmane.science.mathematics.categories Subject: Re: Correspondence between TQFT and state sum models? Date: Wed, 13 May 2009 08:49:48 -0700 Message-ID: Reply-To: John Baez NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1242243233 19905 80.91.229.12 (13 May 2009 19:33:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 13 May 2009 19:33:53 +0000 (UTC) To: categories@mta.ca Original-X-From: categories@mta.ca Wed May 13 21:33:43 2009 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from mailserv.mta.ca ([138.73.1.1]) by lo.gmane.org with esmtp (Exim 4.50) id 1M4KCx-0004EE-Ux for gsmc-categories@m.gmane.org; Wed, 13 May 2009 21:33:40 +0200 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1M4Jem-0005KO-Sm for categories-list@mta.ca; Wed, 13 May 2009 15:58:20 -0300 Original-Sender: categories@mta.ca Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:4833 Archived-At: Rafael Borowiecki writes: Is there a correspondence in general between TQFTs and state sum models? There should be a correspondence between *extended* TQFTs and state sum models. The theory of extended TQFTs is only beginning to be developed, so this expected correspondence has not yet been proved. I recommend taking a look at this paper: Jacob Lurie On the Classification of Topological Field Theories http://arxiv.org/abs/0905.0465 Best, jb