arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1307.6344math.COmath.PR
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随机重图是简单图的概率为II

The probability that a random multigraph is simple, II

Svante Janson

摘要:

考虑由配置模型构造的具有给定顶点度的随机重图。我们给出了一个新的证明,证明了对于边数趋于无穷大的多重图序列,多重图是简单图的概率不为0当且仅当$\sum d_i^2 = O(\sum d_i)$,其中$d_i$是顶点度.新的证明使用的矩量法,这使得它有可能使用它在一些应用程序有关的依分布收敛。包括了二部图的相应结果。

英文摘要:

Consider a random multigraph with given vertex degrees constructed by the configuration model. We give a new proof of the fact that, asymptotically for a sequence of such multigraphs with the number of edges tending to infinity, the probability that the multigraph is simple stays away from 0 if and only if $\sum d_i^2 = O(\sum d_i)$, where $d_i$ are the vertex degrees. The new proof uses the method of moments, which makes it possible to use it in some applications concerning convergence in distribution. Corresponding results for bipartite graphs are included.

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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