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arXiv 1504.08103math.PRmath.CO
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稀疏随机图的局部弱极限与子图数

On local weak limit and subgraph counts for sparse random graphs

Valentas Kurauskas

摘要:

本文利用Sidorenko不等式证明了稀疏随机图的局部弱收敛序列的局部和全局子图数与度矩之间的一般关系。这产生了一个最佳的标准,检查时的渐近行为的图统计,如聚类系数和不确定性是由当地的弱限制。作为一个应用,我们获得了新的事实,稀疏随机交图的几个常见模型的局部弱极限,因为我们看到在这里,是一个简单的随机团树对应于一定的两个类型的Galton-Watson分支过程。

英文摘要:

We use an inequality of Sidorenko to show a general relation between local and global subgraph counts and degree moments for locally weakly convergent sequences of sparse random graphs. This yields an optimal criterion to check when the asymptotic behaviour of graph statistics such as the clustering coefficient and assortativity is determined by the local weak limit. As an application we obtain new facts for several common models of sparse random intersection graphs where the local weak limit, as we see here, is a simple random clique tree corresponding to a certain two-type Galton-Watson branching process.

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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