Valuations for matroid polytope subdivisions
Combinatorics
2019-08-15 v2
Abstract
We prove that the ranks of the subsets and the activities of the bases of a matroid define valuations for the subdivisions of a matroid polytope into smaller matroid polytopes.
Keywords
Cite
@article{arxiv.0710.4424,
title = {Valuations for matroid polytope subdivisions},
author = {Federico Ardila and Alex Fink and Felipe Rincón},
journal= {arXiv preprint arXiv:0710.4424},
year = {2019}
}
Comments
19 pages. 2 figures; added section 6 + other corrections