3-Manifold Seminar: Reshetikhin-Turaev for the Drinfeld Double of a Finite Group II

Seminar | March 21 | 3:40-5 p.m. | 891 Evans Hall

 Kevin Donoghue, UC Berkeley

 Department of Mathematics

Reshetikhin and Turaev built a machine which takes as input a certain kind of Hopf algebra and outputs a link invariant. This talk will reverse the process: if you start with a particular link invariant, namely the number of homomorphisms of the link group to a finite group, the corresponding Hopf algebra and its tensor diagrammatics appear after some simple topological considerations.