Title

On the quasi-hereditary property for staggered sheaves

Document Type

Article

Publication Date

1-1-2010

Abstract

Let G be an algebraic group over an algebraically closed field, acting on a variety X with finitely many orbits. Staggered sheaves are certain complexes of G-equivariant coherent sheaves on X that seem to possess many remarkable properties. In this paper, we construct "standard" and "costandard" objects in the category of staggered sheaves, and we prove that that category has enough projectives and injectives. © 2010 American Mathematical Society.

Publication Source (Journal or Book title)

Transactions of the American Mathematical Society

First Page

4735

Last Page

4753

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