Quotient of Deligne-Lusztig varieties

被引：4

作者：

Dudas, Olivier ^{[1
]}

机构：

[1] Inst Math Jussieu, Jussieu, France

来源：

JOURNAL OF ALGEBRA | 2013年 / 381卷

基金：

英国工程与自然科学研究理事会;

关键词：

Deligne-Lusztig varieties; Schubert varieties; Deodhar decomposition; REDUCTIVE GROUPS; DECOMPOSITION;

D O I：

10.1016/j.jalgebra.2013.01.032

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

We study the quotient of parabolic Deligne-Lusztig varieties by a finite unipotent group U-F where U is the unipotent radical of a rational parabolic subgroup P = LU. We show that in some particular cases the cohomology of this quotient can be expressed in terms of "smaller" parabolic Deligne-Lusztig varieties associated to the Levi subgroup L (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：1 / 20

页数：20

共 16 条

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