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Excluding 4-wheels

Published 16 Feb 2012 in cs.DM and math.CO | (1202.3549v2)

Abstract: A 4-wheel is a graph formed by a cycle C and a vertex not in C that has at least four neighbors in C. We prove that a graph G that does not contain a 4-wheel as a subgraph is 4-colorable and we describe some structural properties of such a graph.

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Authors (1)

  1. Pierre Aboulker 

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