Euler-Mahonian distributions of type $B_n$

Details Euler-Mahonian distributions of type $B_n$ Euler-Mahonian distributions of type $B_n$

2008-10-29

arxiv.org/abs/0810.5330v2

Mathematics

Combinatorics

8 pages, 2 figures

Scientific paper

Adin, Brenti, and Roichman introduced the pairs of statistics $(\ndes, \nmaj)$ and $(\fdes, \fmaj)$. They showed that these pairs are equidistributed over the hyperoctahedral group $B_n$, and can be considered "Euler-Mahonian" in that they generalize the Carlitz identity. Further, they asked whether there exists a bijective proof of the equidistribution of their statistics. We give such a bijection, along with a new proof of the generalized Carlitz identity.

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