Publication details

A New Bound for the 2/3 Conjecture

Authors

KRÁĽ Daniel LIU CH SERENI JS WHALEN P YILMA ZB

Year of publication 2013
Type Article in Periodical
Magazine / Source COMBINATORICS PROBABILITY & COMPUTING
Citation
Doi http://dx.doi.org/10.1017/S0963548312000612
Description We show that any n-vertex complete graph with edges coloured with three colours contains a set of at most four vertices such that the number of the neighbours of these vertices in one of the colours is at least 2n/3. The previous best value, proved by Erdos, Faudree, Gould, Gyarfas, Rousseau and Schelp in 1989, is 22. It is conjectured that three vertices suffice.

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