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# Graphs containing triangles are not 3-common

journal contribution
posted on 01.01.2011, 00:00 by James Cummings, Michael Young

A finite graph G is {\em k-common} if the minimum (over all k-colourings of the edges of Kn) of the number of monochromatic labelled copies of G is asymptotically equal, as n tends to infinity, to the expected number of such copies in a random k-colouring of the edges of Kn. Jagger, \u{S}\u{t}oví\u{c}ek and Thomason showed that graphs which contain K4 are not 2-common. We prove that graphs which contain K3 are not 3-common.

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© by International Press of Boston

01/01/2011

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