Title: Derived Reid's recipe for abelian subgroups of SL^3©
2013.09.04 |
| Date | Wed 11 Sep |
| Time | 16:30 — 17:30 |
| Location | Aud. D3 |
Abstract
The classical McKay correspondence is a 1-1 correspondence between non-trivial irreducible representations of a finite subgroup G of SL^2(C) and irreducible divisors on the minimal resolution Y of C^2/G.
In this talk I first introduce, explain and illustrate this classical correspondence. Then I describe joint work with Sabin Cautis and Alastair Craw in which we generalise it to dimension three using the famous Bridgeland-King-Reid derived equivalence. Specifically, we show a natural way to extract from this equivalence a correspondence between irreducible representations of G ? SL^3(C) and exceptional subvarieties of Y = G-Hilb(C^3). The same method applied to G ? SL^2(C) produces the classical McKay.
