Séminaires : Séminaire d'Algèbre

Equipe(s) : gr,
Responsables :J. Alev, D. Hernandez, B. Keller, Th. Levasseur, et S. Morier-Genoud.
Email des responsables : Jacques Alev <jacques.alev@univ-reims.fr>, David Hernandez <david.hernandez@imj-prg.fr>, Bernhard Keller <bernhard.keller@imj-prg.fr>, Thierry Levasseur <Thierry.Levasseur@univ-brest.fr>, Sophie Morier-Genoud <sophie.morier-genoud@imj-prg.fr>
Salle : à distance / remote
Adresse :IHP
Description

Depuis le 23 mars 2020, le séminaire se tient à distance. Pour les liens et mots de passe, merci de contacter l'un des organisateurs ou de souscrire à la liste de diffusion https://listes.math.cnrs.fr/wws/info/paris-algebra-seminar. L'information nécessaire sera envoyée par courrier électronique peu avant chaque exposé. Les notes et transparents sont disponibles ici.

 

Since March 23, 2020, the seminar has been taking place remotely. For the links and passwords, please contact one of the organizers or

subscribe to the mailing list at https://listes.math.cnrs.fr/wws/info/paris-algebra-seminar. The connexion information will be emailed shortly before each talk. Slides and notes are available here.

 


Orateur(s) Sonia NATALE - ,
Titre Exact sequences of tensor categories and applications
Date28/01/2013
Horaire14:00 à 15:00
Diffusion
RésumeThe talk will be based on joint work with A. Bruguières. We shall discuss the notions of normal tensor functor and exact sequence of tensor categories. Examples of exact sequences of tensor categories arise from (strictly) exact sequences of Hopf algebras, and in particular, from exact sequences of finite groups, and also from equivariantization of a finite tensor category under the action of a finite group. We shall present a classification of exact sequences of tensor categories $C' \to C \to C''$, such that $C'$ is finite, in terms of normal faithful Hopf monads on $C''$. We shall also discuss some applications to classification of fusion categories.
Salleà distance / remote
AdresseIHP
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