On Moore bipartite digraphs
نویسندگان
چکیده
In the context of the degree/diameter problem for directed graphs, it is known that the number of vertices of a strongly connected bipartite digraph satisfies a Moore-like bound in terms of its diameter k and the maximum out-degrees (d1; d2) of its partite sets of vertices. It has been proved that, when d1d2 > 1, the digraphs attaining such a bound, called Moore bipartite digraphs, only exist when 2 k 4. This paper deals with
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ورودعنوان ژورنال:
- Journal of Graph Theory
دوره 43 شماره
صفحات -
تاریخ انتشار 2003