Factorization problems in complex reflection groups

Factorization problems in complex reflection groups
复制标题

DOI:
10.4153/s0008414x2000022x
复制
发表时间:
2019-06
期刊:
Canadian Journal of Mathematics
影响因子:
--
通讯作者:
J. Lewis;A. Morales
J. Lewis;A. Morales
中科院分区:
其他
文献类型:
--
作者:
J. Lewis;A. Morales

文献摘要

被引文献

相似文献

摘要我们将一个良好生成的复反射群中的Coxeter元素分解为任意因子,并跟踪每个因子的固定空间维数。在广义置换的无限族中,我们的方法是完全组合的。它给出的结果类似于杰克逊在对称群中的结果,并且可以改进为编码循环类型的概念。作为结果的一个应用,我们给出了W-非交叉划分偏序集的一个以前被忽视的刻画。
Abstract We enumerate factorizations of a Coxeter element in a well-generated complex reflection group into arbitrary factors, keeping track of the fixed space dimension of each factor. In the infinite families of generalized permutations, our approach is fully combinatorial. It gives results analogous to those of Jackson in the symmetric group and can be refined to encode a notion of cycle type. As one application of our results, we give a previously overlooked characterization of the poset of W-noncrossing partitions.