arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1310.5873math.CO
收藏

最大度为2的随机图的普适性

Universality of random graphs for graphs of maximum degree two

Jeong Han Kim, Sang June Lee

摘要:

对于一个图族$\mathcal{F}$,如果$G$包含$\mathcal{F}$中的每个图作为子图,则称图$G$为\emph{$\mathcal{F}$-universal}。设$\mathcal{F}_n(d)$是$n$顶点上最大度至多为$d$的所有图的族. Dellamonica,Kohayakawa,Rödl和Rucienski证明了,对于$d\geq 3$,随机图$G(n,p)$是$\mathcal{F}_n(d)$ -普适的,并且对于足够大的常数$C=C(d)$,它以高概率提供了$p\geq C\big(\frac{\log n}{n}\big)^{1/d}$。本文证明了这个结果中的缺失部分,即随机图$G(n,p)$是$\mathcal{F}_n(2)$ -泛的,且概率很高,只要$p\geq C\big(\frac{\log n}{n}\big)^{1/2}$对一个充分大的常数$C$ .

英文摘要:

For a family $\mathcal{F}$ of graphs, a graph $G$ is called \emph{$\mathcal{F}$-universal} if $G$ contains every graph in $\mathcal{F}$ as a subgraph. Let $\mathcal{F}_n(d)$ be the family of all graphs on $n$ vertices with maximum degree at most $d$. Dellamonica, Kohayakawa, Rödl and Ruciński showed that, for $d\geq 3$, the random graph $G(n,p)$ is $\mathcal{F}_n(d)$-universal with high probability provided $p\geq C\big(\frac{\log n}{n}\big)^{1/d}$ for a sufficiently large constant $C=C(d)$. In this paper we prove the missing part of the result, that is, the random graph $G(n,p)$ is $\mathcal{F}_n(2)$-universal with high probability provided $p\geq C\big(\frac{\log n}{n}\big)^{1/2}$ for a sufficiently large constant $C$.

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。

↑