Characterizations of the set of integer points in an integral bisubmodular polyhedron
Combinatorics
2023-03-14 v1 Discrete Mathematics
Abstract
In this note, we provide two characterizations of the set of integer points in an integral bisubmodular polyhedron. Our characterizations do not require the assumption that a given set satisfies the hole-freeness, i.e., the set of integer points in its convex hull coincides with the original set. One is a natural multiset generalization of the exchange axiom of a delta-matroid, and the other comes from the notion of the tangent cone of an integral bisubmodular polyhedron.
Keywords
Cite
@article{arxiv.2303.06320,
title = {Characterizations of the set of integer points in an integral bisubmodular polyhedron},
author = {Yuni Iwamasa},
journal= {arXiv preprint arXiv:2303.06320},
year = {2023}
}
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9 pages