3 papers
math.CO2019
Stable multivariate generalizations of matching polynomials
Nima Amini
The first part of this note concerns stable averages of multivariate matching polynomials. In proving the existence of infinite families of bipartite Ramanujan -coverings, Hall,…
math.CO2018
The Cone of Cyclic Sieving Phenomena
Per Alexandersson, Nima Amini
We study cyclic sieving phenomena (CSP) on combinatorial objects from an abstract point of view by considering a rational polyhedral cone determined by the linear equations that de…
math.CO2017
Equidistributions of Mahonian statistics over pattern avoiding permutations
Nima Amini
A Mahonian d-function is a Mahonian statistic that can be expressed as a linear combination of vincular pattern statistics of length at most d. Babson and Steingrimsson classified…