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 : Zoom ou hybride selon les orateurs. Info sur https://researchseminars.org/seminar/paris-algebra-seminar
Adresse :Zoom ou IHP Salle 01

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) Pierre-Guy PLAMONDON - Versailles,
Titre Cluster algebras, categorification, and some configuration spaces
Horaire14:00 à 15:00
RésumeThe real part of the configuration space M_{0,n} of n points on a projective line has a connected component which is closely related to the associahedron. As an affine variety, it is defined by explicit equations which are in close connection with exchange relations for cluster variables in type A. This has been generalized to all Dynkin types. In this talk, we will construct an affine variety associated to any representation-finite finite-dimensional algebra over an algebraically closed field. The equations defining the variety will be obtained from the F-polynomials of indecomposable modules over the algebra. This generalizes previous results, which can be recovered by applying our construction to Jacobian algebras in Dynkin types. This talk is based on an ongoing project with Nima Arkani-Hamed, Hadleigh Frost, Giulio Salvatori and Hugh Thomas.
SalleZoom ou hybride selon les orateurs. Info sur https://researchseminars.org/seminar/paris-algebra-seminar
AdresseZoom ou IHP Salle 01