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arXiv:1703.08768math.CO

$R(5,5) \le 48$

Vigleik Angeltveit, Brendan D. McKay

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Abstract

We improve the upper bound on the Ramsey number $R(5,5)$ from $R(5,5) \le 49$ to $R(5,5) \le 48$. We also complete the catalogue of extremal graphs for $R(4,5)$.

arXiv comments
8 pages
Journal reference
DOI
Subjects
math.COCombinatorics

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