Spanning universality in random graphs
Spanning universality in random graphs
复制标题
跨越随机图中的普遍性
DOI:
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
R. Nenadov
中科院分区:
文献类型:
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作者:
Asaf Ferber;R. Nenadov
A graph is said to be H(n,Δ) ‐universal if it contains every graph with n vertices and maximum degree at most Δ as a subgraph. Dellamonica, Kohayakawa, Rödl and Ruciński used a “matching‐based” embedding technique introduced by Alon and Füredi to show that the random graph Gn,p is asymptotically almost surely H(n,Δ) ‐universal for p=Ω((logn/n)1/Δ) , a threshold for the property that every subset of Δ vertices has a common neighbor. This bound has become a benchmark in the field and many subsequent results on embedding spanning graphs of maximum degree Δ in random graphs are proven only up to this threshold. We take a step towards overcoming limitations of former techniques by showing that Gn,p is almost surely H(n,Δ) ‐universal for p=Ω(n−1/(Δ−0.5)log3n) .
DOI:
10.1017/s0963548313000199
发表时间:
2013
期刊:
Combinatorics, Probability and Computing
影响因子:
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作者:
J. Böttcher;Y. Kohayakawa;A. Taraz
通讯作者:
A. Taraz