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A class of self-complementary graphs and lower bounds of some ramsey numbers
Authors:C R J Clapham
Abstract:A method is described of constructing a class of self-complementary graphs, that includes a self-complementary graph, containing no K5, with 41 vertices and a self-complementary graph, containing no K7, with 113 vertices. The latter construction gives the improved Ramsey number lower bound r(7, 7) ≥ 114.
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