Cut Polytopes of Minor-free Graphs

03/05/2019

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by   Markus Chimani, et al.

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The cut polytope of a graph G is the convex hull of the indicator vectors of all cuts in G and is closely related to the MaxCut problem. We give the facet-description of cut polytopes of K_3,3-minor-free graphs and introduce an algorithm solving MaxCut on those graphs, which only requires the running time of planar MaxCut. Moreover, starting a systematic geometric study of cut polytopes, we classify graphs admitting a simple or simplicial cut polytope.