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与图的支配性有关的不变量的若干不等式
引用本文:张剑英,周三明.与图的支配性有关的不变量的若干不等式[J].华中科技大学学报(自然科学版),1996(11).
作者姓名:张剑英  周三明
作者单位:武汉纺织工学院
摘    要:证明了关于图的支配数、上支配数、全支配数、连通支配数、点-边弱(强)支配数及边-点弱(强)支配数的一些不等式,并继而讨论了这些不变量的若干介值性质

关 键 词:支配性  图的不变量  介值性

Inequalities for Domination Related Invariants of Graphs
Zhang Jianying Wuhan Institute of Textile,Wuhan Zhou Sanming.Inequalities for Domination Related Invariants of Graphs[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1996(11).
Authors:Zhang Jianying Wuhan Institute of Textile  Wuhan Zhou Sanming
Abstract:The changes of the domination related invariants, such as the domination number, the edge domination number, the total domination number, the connected domination number, the vertex edge weak/strong domination number and the edge vertex weak/strong domination number of graphs under the transformation in which one edge or one pendant vertex is deleted are discussed. For instance, it is proved that the vertex edge strong domination number changes by at most one when one edge is deleted, and that it decreases by one or remains unchanged when one vertex is deleted. Similar inequalities for other domination related invariants are proved under appropriate conditions. With these inequalities, it is proved that the domination number, the edge domination number, the vertex edge weak domination number, the vertex edge strong domination number and the edge vertex weak domination number interpolate over some families of subgraphs of a given connected graph.
Keywords:domination  invarinats of a graph  interpolation
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