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 : 001
Adresse :IHP
Description
 

 


Orateur(s) Matt SZCZESNY - Boston,
Titre Hall algebras and representation theory over the field with one element
Date26/03/2012
Horaire14:00 à 15:00
RésumeI will describe several examples of non-additive categories where the Hall algebra construction makes sense. These should be viewed as $F_1$ analogues of abelian categories. Examples include categories of Feynman graphs, monoid representations, coherent sheaves on projective monoidal schemes, and quiver representations over $F_1$. The resulting Hall algebras include the Connes-Kreimer Hopf algebra of Feynman graphs and rooted trees and (nilpotent halves of ) enveloping algebras of Kac-Moody and loop algebras.
Salle001
AdresseIHP
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