On the excedance number of colored permutation groups
Combinatorics
2007-05-23 v1
Abstract
We generalize the results of Ksavrelof and Zeng about the multidistribution of the excedance number of with some natural parameters to the colored permutation group and to the Coxeter group of type . We define two different orders on these groups which induce two different excedance numbers. Surprisingly, in the case of the colored permutation group, we get the same generalized formulas for both orders.
Keywords
Cite
@article{arxiv.math/0505436,
title = {On the excedance number of colored permutation groups},
author = {Eli Bagno and David Garber},
journal= {arXiv preprint arXiv:math/0505436},
year = {2007}
}
Comments
15 pages, no figures. submitted