A note on parabolic subgroups of a Coxeter group

被引:14
作者
Qi, Dongwen [1 ]
机构
[1] Ohio State Univ, Dept Math, Columbus, OH 43210 USA
关键词
Coxeter group; root system; canonical representation; parabolic subgroup;
D O I
10.1016/j.exmath.2006.05.001
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The aim of this note is to prove that the parabolic closure of any subset of a Coxeter group is a parabolic subgroup. To obtain that, several technical lemmas on the root system of a parabolic subgroup are established. (c) 2006 Elsevier GmbH. All rights reserved.
引用
收藏
页码:77 / 81
页数:5
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