Student Algebra Seminar: Pauwels -- Springer theory

Bregje will give the Seminar’s eleventh talk for Semester 1 tomorrow morning on Zoom.
Please find the details below.  Anyone who would like to attend the talk or join the
mailing list is warmly invited to e-mail ciappara@maths.usyd.edu.au.  

Abstract: Given a reductive algebraic group, Springer constructed an action of the Weyl
group W on the cohomology of certain closed subvarieties of the flag variety.  Since
then, Springer’s work has been reinterpreted in the language of perverse sheaves: the
Springer correspondence is a bijection between irreducible representations of W and
(certain) simple perverse sheaves on the nilpotent cone.  The goal of this talk is to
explain this correspondence.  

Time and date: 11 am Tuesday 15 June.