A weak form of Hadwiger's conjecture

preprint2013arXivOpen access

Abstract

We introduce the following weak version of Hadwiger's conjecture: If GG is a graph and κκ is a cardinal such that there is no coloring map c:G→κc:G \to κ, then KκK_κ is a minor of GG. We prove that this statement is true for graphs with infinite chromatic number

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