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) Ivan PENKOV - Bremen,
Titre Ind-varieties of generalized flags
Date06/04/2020
Horaire14:00 à 15:00
Résume

When trying to construct flag realizations for the homogeneous ind-spaces \(GL(\infty)/P, O(\infty)/P, Sp(\infty)/P\), one encounters the notion of generalized flag. This is a chain of vector subspaces satisfying some non-obvious conditions. The ind-varieties of generalized flags are very interesting direct limits of usual flag varieties. In this talk I will discuss their construction and some known properties like projectivity or non-projectivity.

Salle001
AdresseIHP
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