Valuations for matroid polytope subdivisions

Details Valuations for matroid polytope subdivisions Valuations for matroid polytope subdivisions

2007-10-24

arxiv.org/abs/0710.4424v2

Mathematics

Combinatorics

19 pages. 2 figures; added section 6 + other corrections

Scientific paper

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.

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