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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(e) ISSN 0002-9947(p)

     

On the quasi-hereditary property for staggered sheaves

Author(s): Pramod N. Achar
Journal: Trans. Amer. Math. Soc. 362 (2010), 4735-4753.
MSC (2010): Primary 14F05, 18G05
Posted: April 21, 2010
MathSciNet review: 2645048
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Abstract | References | Similar articles | Additional information

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.


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Additional Information:

Pramod N. Achar
Affiliation: Department of Mathematics, Louisiana State University, Baton Rouge, Louisiana 70803
Email: pramod@math.lsu.edu

DOI: 10.1090/S0002-9947-10-04996-2
PII: S 0002-9947(10)04996-2
Received by editor(s): October 16, 2008
Posted: April 21, 2010
Additional Notes: The author was partially supported by NSF Grant DMS-0500873.
Copyright of article: Copyright 2010, American Mathematical Society




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