| Orateur(s) | Francesco SALA - Heriot-Watt University and Maxwell Institute for Mathematical Sciences,
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| Titre | Vertex operators and framed sheaves on root stacks. |
| Date | 21/03/2014 |
| Horaire | 11:00 à 12:00 |
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| Diffusion | |
| Résume | In 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). |
| Salle | 175 rue du Chevaleret - 75013 Paris |
| Adresse | |
