arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.13319math.CO
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稀疏随机外平面图的巨分支和2-核

The giant component and 2-core in sparse random outerplanar graphs

Mihyun Kang, Michael Missethan

摘要:

设$A(n,m)$是从具有$n$顶点和$m$边的所有顶点标号外平面图类中随机均匀选取的图.当$m=n/2+s$用于$s=o(n)$时,我们考虑$A(n,m)$在稀疏机制中。我们表明,以高概率的巨组件$A(n,m)$出现在$m=n/2+O\left(n^{2/3}\right)$和确定的2-核心的典型顺序。此外,我们还证明了如果$s=ω\left(n^{2/3}\right)$,则$A(n,m)$中的每条边以很高的概率至多属于一个圈.

英文摘要:

Let $A(n,m)$ be a graph chosen uniformly at random from the class of all vertex-labelled outerplanar graphs with $n$ vertices and $m$ edges. We consider $A(n,m)$ in the sparse regime when $m=n/2+s$ for $s=o(n)$. We show that with high probability the giant component in $A(n,m)$ emerges at $m=n/2+O\left(n^{2/3}\right)$ and determine the typical order of the 2-core. In addition, we prove that if $s=ω\left(n^{2/3}\right)$, with high probability every edge in $A(n,m)$ belongs to at most one cycle.

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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