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arXiv 2408.09591cs.DS
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有界团宽图上唯一最小顶点覆盖的预分配问题

Pre-assignment problem for unique minimum vertex cover on bounded clique-width graphs

Bar-Ilan University(巴伊兰大学);Hanyang University(汉阳大学);Graz University of Technology(格拉茨工业大学);Institute for Basic Science (IBS)(基础科学研究院);POSTECH(浦项科技大学)

Shinwoo An, Yeonsu Chang, Kyungjin Cho, O-joung Kwon, Myounghwan Lee, Eunjin Oh, Hyeonjun Shin

AI总结:

研究有界团宽图上唯一最小顶点覆盖的预分配问题,证明Min PAU-VC以团宽为参数固定参数可处理,改进了树的算法,且在团宽无界的分裂图和单位区间图上可线性时间求解。

摘要:

Horiyama等人(2024年AAAI)考虑了在特定条件下生成具有唯一最小顶点覆盖的实例的问题。最小顶点覆盖唯一化的最小预分配问题(简称Min PAU-VC)是,对于给定的图G,找到G中顶点的最小集合S,使得在G的所有最小顶点覆盖中,恰好有一个包含S。我们证明了Min PAU-VC以团宽为参数是固定参数可处理的,改进了Horiyama等人给出的树的指数算法。在团宽无界的自然图类中,我们表明该问题在分裂图和单位区间图上可以在线性时间内解决。

英文摘要:

Horiyama et al. (AAAI 2024) considered the problem of generating instances with a unique minimum vertex cover under certain conditions. The Minimum Pre-assignment for Uniquification of Minimum Vertex Cover problem (shortly Min PAU-VC) is the problem, for given a graph $G$, to find a minimum set $S$ of vertices in $G$ such that among all minimum vertex covers of $G$, exactly one contains $S$. We show that Min PAU-VC is fixed-parameter tractable parameterized by clique-width, which improves an exponential algorithm for trees given by Horiyama et al. Among natural graph classes with unbounded clique-width, we show that the problem can be solved in linear time on split graphs and unit interval graphs.

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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