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arXiv 1708.09243math.CO
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随机扰动稠密图的拼接

Tilings in randomly perturbed dense graphs

József Balogh, Andrew Treglown, Adam Zsolt Wagner

摘要:

图$G$中的完美$H$ -平铺是图$H$在$G$中的顶点不相交副本的集合,这些副本一起覆盖$G$中的所有顶点。本文研究了由Bohman,Frieze和Martin提出的随机图模型中的完美$H$ -镶嵌问题.在这个随机图模型中,我们从稠密图开始,然后在稠密图上添加$m$随机边.具体地说,对于任何固定图$H$,我们确定添加到线性最小度的任意图所需的随机边的数量,以确保所得到的图包含完美的$H$。以高概率平铺。我们的证明利用Szemerédi的正则引理以及一个特殊情况下的结果Komlós关于几乎完美的$H$ -tilings密集图。

英文摘要:

A perfect $H$-tiling in a graph $G$ is a collection of vertex-disjoint copies of a graph $H$ in $G$ that together cover all the vertices in $G$. In this paper we investigate perfect $H$-tilings in a random graph model introduced by Bohman, Frieze and Martin in which one starts with a dense graph and then adds $m$ random edges to it. Specifically, for any fixed graph $H$, we determine the number of random edges required to add to an arbitrary graph of linear minimum degree in order to ensure the resulting graph contains a perfect $H$-tiling with high probability. Our proof utilises Szemerédi's Regularity lemma as well as a special case of a result of Komlós concerning almost perfect $H$-tilings in dense 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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