Signed words and permutations, IV; Fixed and pixed points
组合数学
2007-05-23 v1
摘要
The flag-major index "fmaj" and the classical length function "" are used to construct two -analogs of the generating polynomial for the hyperoctahedral group~ by number of positive and negative fixed points (resp. pixed points). Specializations of those -analogs are also derived dealing with signed derangements and desarrangements, as well as several classical results that were previously proved for the symmetric group.
引用
@article{arxiv.math/0606566,
title = {Signed words and permutations, IV; Fixed and pixed points},
author = {Dominique Foata and Guo-Niu Han},
journal= {arXiv preprint arXiv:math/0606566},
year = {2007}
}
备注
21 pages