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Spencer Backman: A regular unimodular triangulation for the matroid base polytope

Speaker: Spencer Backman (University of Vermont)

Time: Wed 2023-12-06 15.15 - 16.15

Location: 3721 and Zoom

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ABSTRACT: We produce the first regular unimodular triangulation of an arbitrary matroid base polytope. We then extend our triangulation to integral generalized permutahedra. Prior to this work it was unknown whether each matroid base polytope admitted a unimodular cover. This is joint work with Gaku Liu.