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SUMMARY:The McKay correspondence and GIT - Austin Hubbard\, University of 
 Bath
DTSTART:20241122T160000Z
DTEND:20241122T170000Z
UID:TALK220639@talks.cam.ac.uk
CONTACT:Siao Chi Mok
DESCRIPTION:The classical McKay correspondence is an observation relating 
 properties of finite subgroups G of SL(C^2^) to the minimal (crepant) reso
 lutions of the singularities C^2^/G. From a modern perspective this is obt
 ained from a derived equivalence between the minimal resolution and the or
 bifold C^2^/G. We will provide an introduction to the McKay correspondence
  and GIT. Finally we will discuss an unresolved question recently posed b
 y Abdelgadir-Segal on the existence of a GIT problem which produces all po
 ssible crepant partial resolutions (as orbifolds) of C^2^/G via variation 
 of GIT quotient.
LOCATION:MR13
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