74 citations · 186 across the 16 of their papers we have counts for
Showing 2022Show all
2 papers · 1 filter
math.CO2022★ 1 cited
Enumeration of permutations by the parity of descent positions
Qiongqiong Pan, Jiang Zeng
Noticing that some recent variations of descent polynomials are special cases of Carlitz and Scoville's four-variable polynomials, which enumerate permutations by the parity of des…
math.CO2022
Counting derangements with signed right-to-left minima and excedances
Yanni Pei, Jiang Zeng
Recently Alexandersson and Getachew proved some multivariate generalizations of a formula for enumerating signed excedances in derangements. In this paper we first relate their wor…