3 papers
math.CO2024
A group action on cyclic compositions and -positivity
Shishuo Fu, Jie Yang
Let be the number of Dyck paths of semilength with occurrences of and occurrences of . We establish in two ways a new interpretation of the number…
math.CO2022
An involution on restricted Laguerre histories and its applications
Joanna N. Chen, Shishuo Fu
Laguerre histories (restricted or not) are certain weighted Motzkin paths with two types of level steps. They are, on one hand, in natural bijection with the set of permutations, a…
math.CO2017
Some inequalities for -colored partition functions
Shane Chern, Shishuo Fu, Dazhao Tang
Motivated by a partition inequality of Bessenrodt and Ono, we obtain analogous inequalities for -colored partition functions for all . This enables us to ext…