Yuval Roichman

activity

19992026

most citedEquidistribution and Sign-Balance on 321-Avoiding Permutations

20 citations · 46 across the 24 of their papers we have counts for

collaborators

Showing 2003 · math.COShow all

3 papers · 2 filters

math.CO2003

q Statistics on $S_{n}$ and Pattern Avoidance

Amitai Regev, Yuval Roichman

Natural q analogues of classical statistics on the symmetric groups $S_{n}$ are introduced; parameters like: the q-length, the q-inversion number, the q-descent number and the q-majo…

math.CO2003★ 20 cited

Equidistribution and Sign-Balance on 321-Avoiding Permutations

Ron M. Adin, Yuval Roichman

Let $T_{n}$ be the set of 321-avoiding permutations of order $n$ . Two properties of $T_{n}$ are proved: (1) The {\em last descent} and {\em last index minus one} statistics are equidis…

math.CO2003★ 2 cited

Permutation Statistics on the Alternating Group

Amitai Regev, Yuval Roichman

Let $A_{n} \subseteq S_{n}$ denote the alternating and the symmetric groups on $1, ..., n$ . MacMahaon's theorem, about the equi-distribution of the length and the major indices in $S_{n}$ ,…

q Statistics on Sn​ and Pattern Avoidance

Equidistribution and Sign-Balance on 321-Avoiding Permutations

Permutation Statistics on the Alternating Group

q Statistics on $S_{n}$ and Pattern Avoidance