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) Pierrick BOUSSEAU - Zurich,
Titre The flow tree formula for Donaldson-Thomas invariants of quivers with potentials
Horaire14:00 à 15:00
RésumeVery generally, Donaldson-Thomas invariants are counts of stable objects in Calabi-Yau triangulated categories of dimension 3. A natural source of examples is provided by the representation theory of quivers with potentials. I will present a proof of a formula, conjectured by Alexandrov-Pioline from string-theory arguments, which computes Donaldson-Thomas invariants of a quiver with potential in terms of a much smaller set of "attractor invariants". The proof uses the framework of scattering diagrams to reorganize sequences of iterated applications of the Kontsevich-Soibelman wall-crossing formula. This is joint work with Hülya Argüz.
SalleInfo sur https://researchseminars.org/seminar/paris-algebra-seminar