Non-crossing partitions for classical reflection groups

被引:155
|
作者
Reiner, V [1 ]
机构
[1] UNIV MINNESOTA,SCH MATH,MINNEAPOLIS,MN 55455
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0012-365X(96)00365-2
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We introduce analogues of the lattice of non-crossing set partitions for the classical reflection groups of types B and D. The type B analogues (first considered by Montenegro in a different guise) turn out to be as well-behaved as the original non-crossing set partitions, and the type D analogues almost as well-behaved. In both cases, they are EL-labellable ranked lattices with symmetric chain decompositions (self-dual for type B), whose rank-generating functions, zeta polynomials, rank-selected chain numbers have simple closed forms.
引用
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页码:195 / 222
页数:28
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