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Gorenstein graphic matroids from multigraphs

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arxiv 1912.03862 v3 pith:NHGRUILM submitted 2019-12-09 math.CO math.AC

classification math.COmath.AC
keywords gorensteinclassificationmatroidsmultigraphsassociatedextendfullgraph-theoretic
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A matroid is Gorenstein if its toric variety is. Hibi, Laso\'n, Matsuda, Micha\l{}ek, and Vodi\v{c}ka provided a full graph-theoretic classification of Gorenstein matroids associated to simple graphs. We extend this classification to multigraphs.

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