How to Hunt an Invisible Rabbit on a Graph

How to Hunt an Invisible Rabbit on a Graph
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如何在图表上寻找隐形兔子

DOI:
10.1016/j.ejc.2015.08.002
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发表时间:
2015
期刊:
ArXiv
影响因子:
--
通讯作者:
Michal Pilipczuk
Michal Pilipczuk
中科院分区:
--
文献类型:
--
作者:
T. V. Abramovskaya;F. Fomin;P. Golovach;Michal Pilipczuk

文献摘要

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摘要 我们在图上研究了猎人与兔子游戏,其中一组猎人试图抓住一只看不见的兔子,这只兔子在每一轮都被迫沿着图的边缘滑动。我们证明了在 (n× m) 网格上获胜所需的最小猎人数量是⌊ min {n, m} 2⌋+ 1。我们还表明,在 n 顶点树上这个数字的极值在 Ω (log n/log log n) 和 O (log n) 之间。
Abstract We investigate Hunters & Rabbit game on graphs, where a set of hunters tries to catch an invisible rabbit that is forced to slide along an edge of a graph at every round. We show that the minimum number of hunters required to win on an (n× m)-grid is⌊ min {n, m} 2⌋+ 1. We also show that the extremal value of this number on n-vertex trees is between Ω (log n/log log n) and O (log n).