Even Pairs and Prism Corners in Berge Graphs
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چکیده
Let G be a Berge graph such that no induced subgraph is a 4-cycle or a line-graph of a bipartite subdivision of K4. We show that every such graph G either is a complete graph or has an even pair.
منابع مشابه
Even Pairs and Prism Corners in Square-Free Berge Graphs
Let G be a Berge graph such that no induced subgraph is a 4-cycle or a line-graph of a bipartite subdivision of K4. We show that every such graph G either is a complete graph or has an even pair.
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تاریخ انتشار 2016