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- W4387339991 abstract "Matching minors are a specialisation of minors fit for the study of graph with perfect matchings. The notion of matching minors has been used to give a structural description of bipartite graphs on which the number of perfect matchings can becomputed efficiently, based on a result of Little, by McCuaig et al. in 1999.In this paper we generalise basic ideas from the graph minor series by Robertson and Seymour to the setting of bipartite graphs with perfect matchings. We introducea version of Erdos-Posa property for matching minors and find a direct link between this property and planarity. From this, it follows that a class of bipartite graphs withperfect matchings has bounded perfect matching width if and only if it excludes aplanar matching minor. We also present algorithms for bipartite graphs of bounded perfect matching width for a matching version of the disjoint paths problem, matching minor containment, and for counting the number of perfect matchings. From our structural results, we obtain that recognising whether a bipartite graphGcontains afixed planar graphHas a matching minor, and that counting the number of perfect matchings of a bipartite graph that excludes a fixed planar graph as a matching minor are both polynomial time solvable." @default.
- W4387339991 created "2023-10-05" @default.
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- W4387339991 date "2021-06-01" @default.
- W4387339991 modified "2023-10-06" @default.
- W4387339991 title "Excluding a Planar Matching Minor in Bipartite Graphs" @default.
- W4387339991 doi "https://doi.org/10.48550/arxiv.2106.00703" @default.
- W4387339991 hasPublicationYear "2021" @default.
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