arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1707.04898math.CO
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图的部分控制

Partial Domination in Graphs

Angsuman Das

摘要:

设$G=(V,E)$是一个图。对于某些具有$0<α\leq 1$的$α$,如果$|N[S]|\geq α|V|$,则称$V$的子集$S$是$α$ -部分控制集。一个最小的$S$的大小被称为$α$ -部分控制数,用$\mathsf{pd}_α(G)$表示。本文在图$G$中引入了$α$ -部分控制数的概念,并研究了图$G$的部分控制数的不同界,这些界与图的阶、最大度、控制数等有关,引入了$α$ -部分控制谱,并研究了部分控制数的Nordhaus-Gaddum界.

英文摘要:

Let $G=(V,E)$ be a graph. For some $α$ with $0<α\leq 1$, a subset $S$ of $V$ is said to be a $α$-partial dominating set if $|N[S]|\geq α|V|$. The size of a smallest such $S$ is called the $α$-partial domination number and is denoted by $\mathsf{pd}_α(G)$. In this paper, we introduce $α$-partial domination number in a graph $G$ and study different bounds on the partial domination number of a graph $G$ with respect to its order, maximum degree, domination number etc., Moreover, $α$-partial domination spectrum is introduced and Nordhaus-Gaddum bounds on the partial domination number are studied.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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