2 papers
math.CO2025
Distribution of statistics on separable permutations restricted by a flat POP
Alice L. L. Gao, Sergey Kitaev, Ya-Xing Li +1
Finding distributions of statistics in pattern-avoiding permutations has attracted significant attention in the literature. In particular, Chen, Kitaev, and Zhang derived functiona…
math.CO2025
The inverse -polynomial of a matroid
Alice L. L. Gao, Xuan Ruan, Matthew H. Y. Xie
Motivated by the -polynomials of matroids, Ferroni, Matherne, Stevens, and Vecchi introduced the inverse -polynomial of a matroid. In this paper, we prove several fundamental…