Xue Zhu

most citedQuasi-Stirling Permutations on Multisets

1 citations · 1 across the 2 of their papers we have counts for

collaborators

2 papers

math.CO2021★ 1 cited

Quasi-Stirling Permutations on Multisets

Sherry H. F. Yan, Lihong Yang, Yunwei Huang +1

A permutation $π$ of a multiset is said to be a {\em quasi-Stirling } permutation if there does not exist four indices $i < j < k < ℓ$ such that $π_{i} = π_{k}$ and $π_{j} = π_{ℓ}$ . Define $…

math.CO2021

Quasi-Stirling Polynomials on Multisets

Sherry H. F. Yan, Xue Zhu

A permutation $π$ of a multiset is said to be a {\em quasi-Stirling} permutation if there does not exist four indices $i < j < k < ℓ$ such that $π_{i} = π_{k}$ and $π_{j} = π_{ℓ}$ . For a mul…