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 :
Description

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) Greg Muller - Oklahoma,
Titre Juggler's friezes
Date10/10/2022
Horaire14:00 à 15:00
Diffusion
Résume

Frieze patterns are infinite strips of numbers satisfying certain determinantal identities. Originally motivated by Gauss’ “miraculous pentagram” identities, these patterns have since been connected to triangulations, integrable systems, representation theory, and cluster algebras. In this talk, we will review a few characterizations and constructions of frieze patterns, as well as a generalization which allows friezes with a “ragged edge” described by a juggling function. These “juggler’s friezes” correspond to special points in positroid varieties, in direct analogy with how classical friezes correspond to special points in Grassmannians.

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