algebraic combinatorics 1functorial constructions 1linear operators 1Lorentzian polynomials 1matroid theory 1polymatroids 1
From the 1 of 2 linked papers with an AI index.
2 papers
math.CO2026
Matroid correspondence
Colin Crowley, Changxin Ding, Haoxi Hu +7
The paper introduces matroid correspondences, a functorial framework linking matroids and polymatroids, and shows how standard matroid operations arise from it while preserving rep…
math.CO2025
Computing parametric weighted Ehrhart polynomials of smooth polytopes
Daniel Hwang, Juliet Whidden, Josephine Yu
We show that when integral polytopes are deformed while keeping the same facet normal vectors, the coefficients of weighted Ehrhart and -polynomials are piecewise polynomial f…