Academics

Topics on finite group actions on varieties and representation

Time:Mon. & Thur., 17:05-18:40, March 19-May21, 2026 (excluding April 6, April 30, May 4); Sat., 17:05-18:40, May 9, 2026

Venue:B627, Shuangqing Complex Building A

Organizer:/

Speaker:Cédric Bonnafé

Speaker:

Cédric Bonnafé

(Centre National de la Recherche Scientifique)



Time:

Mon. & Thur., 17:05-18:40, March 19-May21, 2026 (excluding April 6, April 30, May 4); Sat., 17:05-18:40, May 9, 2026

Venue:

B627, Shuangqing Complex Building A

Online:

Zoom Meeting ID: 4552601552

Passcode: YMSC

Description:

In this course we will study several topics involving finite group actions on varieties and their interactions with (and applications to) representation theory: invariant theory, reflection groups, Springer theory of eigenspaces, n! Conjecture, McKay correspondence… It aims to give an introduction to geometric representation theory through a battery of examples, each having its own flavour and interest.

DATEMarch 22, 2026
SHARE
Related News
    • 0

      A finite dimensional algebra approach to quantum groups

      Abstract These lectures will explore connections between (generalized) q-Schur algebras and the quantized enveloping algebra Uq(g) associated with a simple Lie algebra g. These connections are facilitated by a certain completion of Lusztig’s modified form of Uq(g). Although the q-Schur algebras arose initially as quotients of Uq(g) it is possible to reverse history and use them as a tool to re...

    • 1

      Random matrices and asymptotic representation theory

      PrerequisiteSome knowledge of representation theory of Lie groups or symmetric group and random matrix theory would be helpful. Demonstrations require the use of Python programming language and Sage computer algebra system, so some experience here would be a plus. There is some overlap with material of my previous course "From free fermions to limit shapes and beyond" and connections to the cou...