Cohomology of Deligne-Lusztig varieties for short-length regular elements in exceptional groups

被引:1
|
作者
Dudas, Olivier
机构
基金
英国工程与自然科学研究理事会;
关键词
Finite reductive groups; Deligne-Lusztig theory; Brauer trees; BRAUER TREES; CHEVALLEY-GROUPS; COXETER ORBITS;
D O I
10.1016/j.jalgebra.2013.07.013
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We determine the cohomology of Deligne-Lusztig varieties associated with some short-length regular elements for split groups of type F-4 and E-n. As a byproduct, we obtain conjectural Brauer trees for the principal Phi(14)-block of E-7 and the principal Phi(24)-block of E-8. (C) 2013 Elsevier Inc. All rights reserved.
引用
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页码:276 / 298
页数:23
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