55 citations · 65 across the 4 of their papers we have counts for
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Counting descent pairs with prescribed colors in the colored permutation groups
Eli Bagno, David Garber, Toufik Mansour
We define new statistics, (c, d)-descents, on the colored permutation groups Z_r \wr S_n and compute the distribution of these statistics on the elements in these groups. We use so…
Excedance numbers for permutations in complex reflection groups
Toufik Mansour, Yidong Sun
Recently, Bagno, Garber and Mansour studied a kind of excedance number on the complex reflection groups and computed its multidistribution with the number of fixed points on the se…
Excedance number for involutions in complex reflection groups
Eli Bagno, David Garber, Toufik Mansour
We define the excedance number on the complex reflection groups and compute its multidistribution with the number of fixed points on the set of involutions in these groups. We use…
Restricted permutations and Chebyshev polynomials
T. Mansour, A. Vainshtein
We study generating functions for the number of permutations in $\SS_n$ subject to two restrictions. One of the restrictions belongs to $\SS_3$, while the other to $\SS_k$. It turn…