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出典:『Wikipedia』 (2011/05/21 19:05 UTC 版)

英語による解説

引用

In the mathematical field of graph theory, the Clebsch graph is an undirected graph with 16 vertices and 40 edges. It is named after Alfred Clebsch, a German mathematician who discovered it in 1868. It is also known as the Greenwood–Gleason graph after the work of Robert M. Greenwood and Andrew M. Gleason (), who used it to evaluate the Ramsey number R(3,3,3) = 17.