English

Signed Euler-Mahonian identities

Combinatorics 2020-07-28 v1

Abstract

A relationship between signed Eulerian polynomials and the classical Eulerian polynomials on Sn\mathfrak{S}_n was given by D\'{e}sarm\'{e}nien and Foata in 1992, and a refined version, called signed Euler-Mahonian identity, together with a bijective proof were proposed by Wachs in the same year. By generalizing this bijection, in this paper we extend the above results to the Coxeter groups of types BnB_n, DnD_n, and the complex reflection group G(r,1,n)G(r,1,n), where the `sign' is taken to be any one-dimensional character. Some obtained identities can be further restricted on some particular set of permutations. We also derive some new interesting sign-balance polynomials for types BnB_n and DnD_n.

Keywords

Cite

@article{arxiv.2007.13176,
  title  = {Signed Euler-Mahonian identities},
  author = {Sen-Peng Eu and Zhicong Lin and Yuan-Hsun Lo},
  journal= {arXiv preprint arXiv:2007.13176},
  year   = {2020}
}

Comments

27 pages

R2 v1 2026-06-23T17:24:48.466Z