%0 Journal Article
%T 加权~Coxeter~群(C3,l6)的胞腔(英)
%A 岳明仕
%J 华东师范大学学报(自然科学版)
%D 2016
%R 10.3969/j.issn.1000-5641.2016.01.004
%X 摘要 {取~\alpha 是仿射~Weyl群~(\widetilde{A}_{2n},\widetilde{S}) 上某个满足~\alpha(\widetilde{S})=\widetilde{S} 的群自同构.仿射~Weyl 群~(\widetilde{C}_n,S) 可以看做仿射~Weyl 群\ (\widetilde{A}_{2n},\widetilde{S}) 在其群自同构~\alpha 下的固定点集合. \widetilde{A}_{2n} 上的长度函数\ \widetilde{l}_{2n} 在~\widetilde{C}_n 上的限制可以看做widetilde{C}_n 上的某个权函数. 本文给出了加权的~Coxeter 群\(\widetilde{C}_3,\widetilde{l}_6) 中所有左胞腔以及双边胞腔的清晰刻画并且证明 (\widetilde{C}_3,\widetilde{l}_6) 中的每个左胞腔都是左连通的.</br>Abstract：Let \alpha be a group automorphism of the affine Weyl group (\widetilde{A}_{2n},\widetilde{S}) with \alpha(\widetilde{S})=\widetilde{S}. Affine Weyl group(\widetilde{C}_n,S) can be seen as the fixed point set of the affine Weyl group (\widetilde{A}_{2n},\widetilde{S}) under its group automorphism \alpha. The restriction to \widetilde{C}_n of the length function \widetilde{l}_{2n} on \widetilde{A}_{2n} can be seen as a weight function on \widetilde{C}_n. In this paper, we give the description for all the left and two-sided cells of the specific weighted Coxeter group (\widetilde{C}_3,\widetilde{l}_6) and prove that each left cell in (\widetilde{C}_3,\widetilde{l}_6) is left-connected.
%K 仿射~Weyl~群
%K 加权~Coxeter~群
%K 拟分裂情形
%K 整数~n~的划分
%K 左胞腔&lt
%K /br&gt
%K Key words： affine Weyl group weighted Coxeter group quasi-split case partitions of n left cells
%U http://xblk.ecnu.edu.cn/CN/abstract/abstract25261.shtml