http://openproblemgarden.org/op/57_regular_moore_graph Comments for "57-regular Moore graph?" en http://openproblemgarden.org/op/57_regular_moore_graph <table cellspacing="10"> <tr> <td> Author(s): <a href="/category/hoffman">Hoffman</a>; <a href="/category/singleton">Singleton</a>&nbsp;&nbsp; </td> <td align=right> Subject: <a href="/category/graph_theory">Graph Theory</a> » <a href="/category/algebraical_graph_theory">Algebraic G.T.</a>&nbsp;&nbsp; </td> </tr> <tr> <td colspan=2> <table border=1 cellspacing="5"> <tr><td> <div class="envtheorem"><b>Question</b>&nbsp;&nbsp; Does there exist a 57-<a href="http://en.wikipedia.org/wiki/regular graph">regular</a> graph with <a href="http://en.wikipedia.org/wiki/diameter (graph theory)">diameter</a> 2 and <a href="http://en.wikipedia.org/wiki/girth">girth</a> 5? </div> </tr></td> </table> </td> </tr> </table> Hoffman, Alan J. Singleton, Robert R. cage Moore graph Graph Theory Algebraic Graph Theory http://openproblemgarden.org/op/57_regular_moore_graph#comment Sun, 18 Mar 2007 06:37:06 +0100 mdevos 160 at http://openproblemgarden.org