The Classification of Extended Topological Field Theories

In the 1980's, Atiyah introduced a mathematical definition of the notion of a topological quantum field theory. In this talk, I'll recall Atiyah's definition and explain the motivation for the more elaborate notion of an extended topological field theory. I'll then discuss the classification of extended topological field theories, following ideas of Baez and Dolan.


Member, School of Natural Sciences, IAS