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arXiv 0707.0465math.CO
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随机图的对策色数

The game chromatic number of random graphs

Tom Bohman, Alan Frieze, Benny Sudakov

摘要:

给定一个图G和一个整数k,两个博弈者轮流用k种颜色对图G的顶点逐一着色,使得相邻的顶点得到不同的颜色。第一个玩家获胜当且仅当游戏结束时G的所有顶点都着色。博弈色数χ g(G)是第一个局中人有获胜策略的最小k。本文分析了随机图G_{n,p}的这个参数的渐近行为。我们表明,以高概率的游戏色数的G_{n,p}是至少两倍的色数,但乘法常数,具有相同的数量级。我们还研究了随机二部图的对策色数。

英文摘要:

Given a graph G and an integer k, two players take turns coloring the vertices of G one by one using k colors so that neighboring vertices get different colors. The first player wins iff at the end of the game all the vertices of G are colored. The game chromatic number χ_g(G) is the minimum k for which the first player has a winning strategy. In this paper we analyze the asymptotic behavior of this parameter for a random graph G_{n,p}. We show that with high probability the game chromatic number of G_{n,p} is at least twice its chromatic number but, up to a multiplicative constant, has the same order of magnitude. We also study the game chromatic number of random bipartite 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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