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20232026
most citedChow functions for partially ordered sets

2 citations · 4 across the 19 of their papers we have counts for

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math.CO2024★ 2 cited

Chow functions for partially ordered sets

Luis Ferroni, Jacob P. Matherne, Lorenzo Vecchi

Three decades ago, Stanley and Brenti initiated the study of the Kazhdan--Lusztig--Stanley (KLS) functions, putting on common ground several polynomials appearing in algebraic comb…

math.CO2024

A convex ear decomposition of the augmented Bergman complex of a matroid

Christos A. Athanasiadis, Luis Ferroni

In recent work of Braden, Huh, Matherne, Proudfoot and Wang, a class of simplicial complexes associated to matroids, called augmented Bergman complexes, was introduced. The present…

math.CO2024

Preservation of inequalities under Hadamard products

Petter Brändén, Luis Ferroni, Katharina Jochemko

Wagner (1992) proved that the Hadamard product of two Pólya frequency sequences that are interpolated by polynomials is again a Pólya frequency sequence. We study whether related c…

math.CO2024★ 1 cited

Deletion formulas for equivariant Kazhdan-Lusztig polynomials of matroids

Luis Ferroni, Jacob P. Matherne, Lorenzo Vecchi

We study equivariant Kazhdan--Lusztig (KL) and -polynomials of matroids. We formulate an equivariant generalization of a result by Braden and Vysogorets that relates the equivar…

math.CO2024

Tutte polynomials of matroids as universal valuative invariants

Luis Ferroni, Benjamin Schröter

We provide a full classification of all families of matroids that are closed under duality and minors, and for which the Tutte polynomial is a universal valuative invariant. There…