THE SPECIAL McKAY CORRESPONDENCE AS AN EQUIVALENCE OF DERIVED CATEGORIES

Alastair Craw · The Quarterly Journal of Mathematics · 2010

We give a new moduli construction of the minimal resolution of the singularity of type 1/r;(1, a) by introducing the Special McKay quiver. To demonstrate that our construction trumps that of the G-Hilbert scheme, we show that the induced tautological line bundles freely generate the bounded derived category of coherent sheaves on X by establishing a suitable derived equivalence. This gives a moduli construction of the Special McKay correspondence for abelian subgroups of GL(2).

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