Manchester Algebra Seminar - Simon May
|11 October 2022
|13:00 - 14:00
|What is it:
|Department of Mathematics
|Who is it for:
|University staff, Current University students
Speaker: Simon May - Leeds
Title: A non-commutative resolution for discriminants of complex reflection groups.
Abstract: In this talk I will introduce the complex reflection groups $G(m,p,2)$ in the Shephard--Todd classification and show that it's hyperplane arrangement
gives rise to a non-commutative resolution of the groups discriminant. In particular we use matrix factorizations to show that all the Cohen-Macaulay modules over the (co-ordinate ring of the) discriminant appear in the decomposition of the (co-ordinate ring of the) hyperplane arrangement
We remark on connections to the Mckay correspondence, and focus on the work of Buchweitz, Faber, Ingalls who expand the classical Mckay correspondence to true reflection groups.
Place: Frank Adams (this term the seminar will not be streamed online)
Tea and biscuits 12:45 in the foyer
Travel and Contact Information
Alan Turing Building