| B. D. McKay and S. P. Radziszowski, `R(4; 5) = 25,' J. Graph Theory 19:309-322, 1995. |
....groups of graphs and digraphs developed by Brendan McKay, Nauty, has been used to prove a number of graph theoretic results, most notably C. Hernando and F. Hurtado partially supported by CUR Gen. Cat. 1999SGR00356 and MEC DGES SEUID PB98 0933 1 the value of the Ramsey number R(4; 5) [18]. Another general purpose strategy, the reverse search scheme due to Avis and Fukuda [2, 3] has been used to enumerate a wide variety of combinatorial structures, including faces of convex polyhedra [7] and hyperplane arrangements [8] bases of matroids, spanning trees of graphs, and ....
B. D. McKay and S. P. Radziszowski, `R(4; 5) = 25,' J. Graph Theory 19:309-322, 1995.
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