Aarhus University Seal / Aarhus Universitets segl

Hopf algebras in braided categories and conformal field theory

Jens Fjelstad
(Karlstads Universitet)
Seminar
Tuesday, 22 June, 2010, at 16:15-17:15, in Aud. D3 (1531-215)
Abstract:
A certain generalisation of spaces of conformal blocks, due to Lyubashenko, can be constructed from a Hopf algebra in a braided category that is not necessarily semisimple. I will describe how algebraic data of a conformal field theory provides other similar categorical constructions. In particular, the category of modules of an algebra in a braided category gives a (non-unital) bialgebra in the same category.
Organised by: CTQM/QGM
Contact person: Jørgen Ellegaard Andersen