J. Zeng

activity

20092026

most citedThe symmetric and unimodal expansion of Eulerian polynomials via continued fractions

74 citations · 186 across the 16 of their papers we have counts for

collaborators

Showing 2019Show all

4 papers · 1 filter

math.CO2019

Further equidistribution of set-valued statistics on permutations

Jianxi Mao, Jiang Zeng

We construct bijections to show that two pairs of sextuple set-valued statistics of permutations are equidistributed on symmetric groups. This extends a recent result of Sokal and…

math.CO2019★ 1 cited

Brändén's $(p, q)$ -Eulerian polynomials, André permutations and continued fractions

Qiong Qiong Pan, Jiang Zeng

In 2008 Brändén proved a $(p, q)$ -analogue of the $γ$ -expansion formula for Eulerian polynomials and conjectured the divisibility of the $γ$ -coefficient $γ_{n, k} (p, q)$ by $(p + q)^{k}$ .…

math.CO2019★ 1 cited

Eulerian polynomials and excedance statistics

Bin Han, Jianxi Mao, Jiang Zeng

A formula of Stembridge states that the permutation peak polynomials and descent polynomials are connected via a quadratique transformation. The aim of this paper is to establish t…

math.CO2019★ 4 cited

Combinatorics of $(q, y)$ -Laguerre polynomials and their moments

Qiongqiong Pan, Jiang Zeng

We consider a $(q, y)$ -analogue of Laguerre polynomials $L_{n}^{(α)} (x; y; q)$ for integral $α \geq - 1$ , which turns out to be a rescaled version of Al-Salam--Chihara polynomials. A comb…

Further equidistribution of set-valued statistics on permutations

Brändén's (p,q)-Eulerian polynomials, André permutations and continued fractions

Eulerian polynomials and excedance statistics

Combinatorics of (q,y)-Laguerre polynomials and their moments

Brändén's $(p, q)$ -Eulerian polynomials, André permutations and continued fractions

Combinatorics of $(q, y)$ -Laguerre polynomials and their moments