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Some results on discrete α-unimodality

✍ Scribed by A.F. Mashhour


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
284 KB
Volume
27
Category
Article
ISSN
0167-7152

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A digraph G = (V, E) is primitive if, for some positive integer k, there is a u → v walk of length k for every pair u, v of vertices of V . The minimum such k is called the exponent of G, denoted exp(G). The exponent of a vertex u ∈ V , denoted exp(u), is the least integer k such that there is a u →