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arXiv 2602.07435math.COcs.DM
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图中具有有限顶点覆盖数的警探与小偷问题

Cops and robber in graphs with bounded vertex cover number

Carleton University(卡尔顿大学);G-SCOP, CNRS, Université Grenoble Alpes(格勒诺布尔阿尔卑斯大学);Jagiellonian University(雅盖隆大学);Université libre de Bruxelles(布鲁塞尔自由大学);Université Côte d’Azur(蔚蓝海岸大学)

Prosenjit Bose, Louis Esperet, Jędrzej Hodor, Gwenaël Joret, Piotr Micek, Clément Rambaud

AI总结:

本文提出了一个基于顶点覆盖数的cop数上界,证明了具有有限顶点覆盖数的连通图的cop数为sublinear级别。

摘要:

Meyniel的猜想指出,具有n个顶点的连通图的cop数为O(√n)。目前最佳的上界是n/2^{(1-o(1))√log n},由Lu和Peng(2011)以及Scott和Sudakov(2011)独立证明。在本文中,我们扩展了他们的结果,证明了每个具有顶点覆盖数k的连通图的cop数至多为k/2^{(1-o(1))√log k}。这是首次以顶点覆盖数为参数的sublinear上界。

英文摘要:

Meyniel's conjecture states that $n$-vertex connected graphs have cop number $O(\sqrt{n})$. The current best known upper bound is $n/2^{(1-o(1))\sqrt{\log n}}$, proved independently by Lu and Peng (2011), and by Scott and Sudakov (2011). In this paper, we extend their result by showing that every connected graph with vertex cover number $k$ has cop number at most $k/2^{(1-o(1))\sqrt{\log k}}$. This is the first sublinear upper bound on the cop number in terms of the vertex cover number.

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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