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Highly irregular digraphs

✍ Scribed by Yousef Alavi; Jiuqiang Liu; Jianfang Wang


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
406 KB
Volume
111
Category
Article
ISSN
0012-365X

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✦ Synopsis


A connected digraph D is highly irregular if the vertices of out-neighborhood of each vertex UE V(D) have different out-degrees. In this paper, we investigate some problems concerning the existence of highly irregular digraphs with special properties, with particular focus on highly irregular directed trees as well as their independence numbers.


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