### Sutured Floer homology: de (and re) categorification

**Rasmussen, J ***(Cambridge)*

Thursday 16 April 2009, 14:30-15:30

Satellite

#### Abstract

Sutured Floer homology is an invariant of sutured manifolds introduced by Andras Juhasz. In this talk I'll explain how to first decategorify this invariant to produce an invariant that is much like the Alexander polynomial; and then recategorify to give a definition of sutured Floer homology related to the bordered Floer homology of Lipshitz, Ozsvath and Thurston. This is joint work with Andras Juhasz and Stefan Friedl.