Séminaires : Séminaire sur les Algèbres Enveloppantes

Equipe(s) :
Responsables :J.-Y. Charbonnel, R. Rentschler, M. Varagnolo
Email des responsables : Jean-Yves Charbonnel <jyc@math.jussieu.fr>, Rudolf Rentschler <rent@math.jussieu.fr>, Michela Varagnolo <varagnol@math.u-cergy.fr>
Salle : 175 rue du Chevaleret - 75013 Paris
Adresse :
Description

Orateur(s) Francesco SALA - Heriot-Watt University and Maxwell Institute for Mathematical Sciences,
Titre Vertex operators and framed sheaves on root stacks.
Date21/03/2014
Horaire11:00 à 12:00
Diffusion
RésumeIn this talk I will describe geometric realizations of level-one highest weight representations of the Kac-Moody algebra of type $A_n$ on the equivariant cohomology of moduli spaces of rank one framed sheaves on certain root toric stacks. Moreover, I will characterize some (Carlsson-Okounkov type) vertex operators arising from the study of these moduli spaces. These results can be interpreted as AGT type correspondences for abelian (quiver) gauge theories on ALE spaces of type $A_n$. (This talk is based on a joint work with Mattia Pedrini and Richard J. Szabo).
Salle175 rue du Chevaleret - 75013 Paris
Adresse
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