9 citations · 49 across the 59 of their papers we have counts for
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math.CO2021
Eulerian polynomials, Stirling permutations and increasing trees
Shi-Mei Ma, Jun Ma, Jean Yeh +1
We study two generalizations of the gamma-expansion of Eulerian polynomials from the viewpoint of the decompositions of statistics. We first present an expansion formula of the tri…
math.CO2021★ 1 cited
Excedance-type polynomials and gamma-positivity
Shi-Mei Ma, Jun Ma, Jean Yeh +1
The object of this paper is to give a systematic treatment of excedance-type polynomials. We first give a sufficient condition for a sequence of polynomials to have alternatingly i…
math.CO2021★ 2 cited
Alternating Eulerian polynomials and left peak polynomials
Shi-Mei Ma, Qi Fang, Toufik Mansour +1
In this paper we present grammatical interpretations of the alternating Eulerian polynomials of types A and B. As applications, we derive several properties of the type B alternati…