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Derived McKay correspondence in dimensions 4 and above

Presented by: 
T Logvinenko [Warwick]
Date: 
Tuesday 18th January 2011 - 11:30 to 12:30
Venue: 
INI Seminar Room 1
Abstract: 
Given a finite subgroup G of SL_n(C) the McKay correspondence studies the relation between G-equivalent geometry of C^n and the geometry of a resolution of Y of C^n/G. In their groundbreaking work, Bridgeland, Kind, and Reid have established that for n = 2,3 the scheme Y = G-Hilb(C^n) is a crepant resolution of C^n/G and that the derived category D(Y) is equivalent to the G-equivalent derived category D^G(C^n). It follows that we also have D(Y) = D^G(C^3) for any other crepant resolution Y of C^3/G. In this talk, I discuss possible ways of generalizing this to dimension 4 and above.
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