Quiver and character varieties: algebraic symplectic geometry (Travis Schedler, Imperial College, Londres)

18.12.2017 10:30

Nakajima's quiver varieties are by now ubiquitous in representation theory (geometric, categorical, and combinatorial) and geometry (hyperkaehler and algebraic symplectic geometry). I will explain a classification, joint with Gwyn Bellamy, of which of these varieties admit symplectic resolutions, following work of Crawley-Boevey, Kaledin--Lehn--Sorger, and others, and extend this to character varieties for closed surfaces. Work of my student Andrea Tirelli extends this to Higgs moduli spaces, work in progress for surfaces with punctures.

Lieu

Bâtiment: Battelle

Séminaire "Groupes de Lie et espaces des modules"

Organisé par

Section de mathématiques

Intervenants

Travis Schedler, Imperial College, Londres

entrée libre

Classement

Catégorie: Séminaire