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arXiv 1709.09889math.CO
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独立集的加权控制

Weighted domination of independent sets

Ron Aharoni, Irina Gorelik

摘要:

图$G$的{ \em独立控制数} $γ^i(G)$是在所有独立集$I$上控制$I$所需的最小顶点数的最大值。已知\cite{abz},在弦图中,$γ^i$等于$γ$,即普通控制数.这个结果的加权版本是不正确的,但我们表明,它确实适用于区间图,并为一个给定的树,其中每个子树是一个单一的边缘的子树的交叉(即线)图。

英文摘要:

The {\em independent domination number} $γ^i(G)$ of a graph $G$ is the maximum, over all independent sets $I$, of the minimal number of vertices needed to dominate $I$. It is known \cite{abz} that in chordal graphs $γ^i$ is equal to $γ$, the ordinary domination number. The weighted version of this result is not true, but we show that it does hold for interval graphs, and for the intersection (that is, line) graphs of subtrees of a given tree, where each subtree is a single edge.

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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