On the Number of Hamilton Cycles in Pseudo-Random Graphs

On the Number of Hamilton Cycles in Pseudo-Random Graphs
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关于伪随机图中的哈密顿循环数

DOI:
10.37236/1177
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发表时间:
2011
期刊:
Electron. J. Comb.
影响因子:
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通讯作者:
Michael Krivelevich
Michael Krivelevich
中科院分区:
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文献类型:
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作者:
Michael Krivelevich

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我们证明,如果$G$是一个$(n,d,\lambda)$-图(n$个顶点上的d$-正则图,其所有的非平凡特征值至多为$\lambda)$且满足以下条件:$\frac{d}{\lambda}\ge(\log n)^{1+\lambda}$对于某个常数$\lambda>0$;$\log d\cdot \log\frac{d}{\lambda}\gg \log n$,则$G$中的汉密尔顿圈数为$n!\左(\frac{d}{n}\right)^n(1+o(1))^n$.
We prove that if $G$ is an $(n,d,\lambda)$-graph (a $d$-regular graph on $n$ vertices, all of whose non-trivial eigenvalues are at most $\lambda)$ and the following conditions are satisfied: $\frac{d}{\lambda}\ge (\log n)^{1+\epsilon}$ for some constant $\epsilon>0$; $\log d\cdot \log\frac{d}{\lambda}\gg \log n$, then the number of Hamilton cycles in $G$ is $n!\left(\frac{d}{n}\right)^n(1+o(1))^n$.
随机图的近似哈密尔顿分解
DOI: 10.1002/rsa.20365
发表时间: 2011
影响因子: 1
作者:
Knox F
通讯作者: Knox F