PERVERSE COHERENT SHEAVES

被引：0

作者：

Arinkin, Dmitry ^{[1
]}

Bezrukavnikov, Roman ^{[2
]}

机构：

[1] Univ N Carolina, Dept Math, Chapel Hill, NC 27515 USA

[2] MIT, Dept Math, Cambridge, MA 02139 USA

来源：

MOSCOW MATHEMATICAL JOURNAL | 2010年 / 10卷 / 01期

关键词：

Coherent perverse sheaves; coherent IC sheaves; T-STRUCTURES; CATEGORIES; MODULES;

D O I：

暂无

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

This note introduces an analogue of perverse t-structure on the derived category of coherent sheaves on an algebraic stack (subject to some mild technical conditions). Under additional assumptions construction of coherent "intersection cohomology" sheaves is given. Those latter assumptions are rather restrictive but hold in some examples of interest in representation theory. Similar results were obtained by Deligne (unpublished), Gabber and Kashiwara.

引用

页码：3 / 29

页数：27

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