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Let G = (V,A) be a digraph.A set T of vertices of G is a twin dominating set of G if for every vertex v ∈ V / T.There exist u,w ∈ T (possibly u = w) such that (u,v),(v,w) ∈ A.The twin domination number γ*(G) of G is the cardinality of a minimum twin dominating set of G.In this paper we consider the twin domination number in generalized Kautz digraphs GK(n,d).In these digraphs,we establish bounds on the twin domination number and give a sufficient condition for the twin domination number attaining the lower bound.We give the exact values of the twin domination numbers by constructing minimum twin dominating sets for some special generalized Kautz digraphs. 相似文献
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文章分析了我国分领域高质量科技期刊的产生背景、现实意义及整体概况,以数学领域为例,从基本信息、学术影响力、学术传播力三个方面,详细分析了入选我国数学领域高质量期刊目录的期刊现状,发现无论是学术质量还是期刊影响力,中国高质量科技期刊与世界一流科技期刊仍存在很大差距,建议通过学会、"双一流"高校、科研机构的学术引领汇聚国内... 相似文献
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Bounds on the absorbant number of generalized Kautz digraphs 总被引:1,自引:1,他引:0
The generalized Kautz digraphs have many good properties as interconnection network topologies. In this note, the bounds of the absorbant number for the generalized Kautz digraph are given, and some sufficient conditions for the absorbant number of the generalized Kautz digraph attaining the bounds are presented. 相似文献
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中国运筹学会科学技术奖的颁发是国内运筹学界的重要活动。为反映运筹学各领域的最新研究成果,《运筹学学报》出版中国运筹学会科学技术奖获奖者专辑。本文详述了获奖者专辑的出版缘由以及策划、出版与传播全过程,从学报学术影响力显著提高、学报和获奖者在国内运筹学界的知名度提升、促进国内运筹学繁荣发展3个方面分析了专辑的出版成效,并向编辑同人分享获奖者专辑的出版经验。 相似文献
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