Séminaire Physique mathématique ICJ

Coends, a Lego-Teichmüller game and correlators in (non-)semisimple conformal field theory

by Christoph Schweigert (Universität Hamburg)

vendredi 16 mars 2018 de au (Europe/Paris)
at Institut Camille Jordan ( Fokko du Cloux )
Université Lyon 1, Bât. Braconnier, 21 av. Claude Bernard, 69100 Villeurbanne
Description
Coends provide the appropriate categorical tool to implement a sum over all states. We use them to set up a Lego-Teichmüller game describing chiral conformal field theories based on non-semisimple modular categories. We show that bulk algebras are described by modular commutative Frobenius algebras.
Contact Email: vignes@math.univ-lyon1.fr