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 : Info sur https://researchseminars.org/seminar/paris-algebra-seminar
Adresse :

Le séminaire est prévu en présence à l'IHP et 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) Johan Asplund - ,
Titre Relative Ginzburg algebras and Chekanov-Eliashberg dg-algebras
Horaire14:00 à 15:00

The Chekanov-Eliashberg dg-algebra yields a powerful isotopy invariant of (possibly singular) Legendrian submanifolds in a class of contact manifolds, and is also intimately related to Fukaya categories of a class of non-compact symplectic manifolds. The goal for this talk is to explain how the relative Ginzburg algebra associated to any ice quiver with trivial potential is quasi-isomorphic to some Chekanov-Eliashberg dg-algebra. The proof is constructive. I will give a gentle introduction to Chekanov-Eliashberg dg-algebras and will discuss how the relation to relative Ginzburg algebras is interesting to contact and symplectic geometers.

This talk will be on Zoom only.

SalleInfo sur https://researchseminars.org/seminar/paris-algebra-seminar