Excluded minors of interval positroids that are paving matroids
Combinatorics
2023-12-07 v1
Abstract
We prove that every paving matroid that is an excluded minor of interval positroids can be reduced to one of three fundamental families of excluded minors of interval positroids by relaxing dependent hyperplanes. Using this result, we classify all non-positroid excluded minors of interval positroids that are paving matroids. Additionally, we provide a criterion that characterizes all excluded minors of interval positroids that are paving positroids.
Cite
@article{arxiv.2312.03525,
title = {Excluded minors of interval positroids that are paving matroids},
author = {Hyungju Park},
journal= {arXiv preprint arXiv:2312.03525},
year = {2023}
}