Lusztig's $a$-function for Coxeter groups with complete graphs

Lusztig's $a$-function for Coxeter groups with complete graphs
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发表时间:
2011-06
期刊:
arXiv: Quantum Algebra
影响因子:
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通讯作者:
N. Xi
N. Xi
中科院分区:
其他
文献类型:
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作者:
N. Xi

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证明了如果Coxeter群有一个完全图(即任意两个顶点是连通的),并且Coxeter群的有限抛物子群的基数有一个共同的上界,则Coxeter群的Lusztig$a$-函数是有界的。
We show that Lusztig's $a$-function of a Coxeter group is bounded if the Coxeter group has a complete graph (i.e. any two vertices are joined) and the cardinalities of finite parabolic subgroups of the Coxeter group have a common upper bound.