Lower bound on the size-Ramsey number of tight paths

Lower bound on the size-Ramsey number of tight paths
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紧路径大小拉姆齐数的下界

DOI:
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发表时间:
2021
影响因子:
0.3
通讯作者:
Christian Winter
Christian Winter
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作者:
Christian Winter

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一个k -一致超图H的大小Ramsey数R(k)(H)是一个k -一致超图G中的最小边数,且G的每一个2-边染色都包含一个H的单色拷贝.对于k ≥ 2和n ∈ N,n个顶点上的k -一致紧路P(k)n被定义为n个顶点上的k -一致超图,它的顶点有一个序,使得它的边都是关于这个序的k个连续顶点的集合.本文证明了k -一致紧路的大小Ramsey数的一个下界,它在一致性k和顶点数n下都是渐近的,即<$R(k)(P(k)n)=<$(cid:0)log(k)n(cid:1).
The size-Ramsey number ˆ R ( k ) ( H ) of a k -uniform hypergraph H is the minimum number of edges in a k -uniform hypergraph G with the property that every ‘2-edge coloring’ of G contains a monochromatic copy of H . For k ≥ 2 and n ∈ N , a k -uniform tight path on n vertices P ( k ) n is defined as a k -uniform hypergraph on n vertices for which there is an ordering of its vertices such that the edges are all sets of k consecutive vertices with respect to this order. We prove a lower bound on the size-Ramsey number of k -uniform tight paths, which is, considered assymptotically in both the uniformity k and the number of vertices n , ˆ R ( k ) ( P ( k ) n ) = Ω (cid:0) log( k ) n (cid:1) .
路径大小拉姆齐数的新下界
DOI: 10.37236/9804
发表时间: 2022
期刊: The Electronic Journal of Combinatorics
影响因子: --
作者:
Bal, Deepak;DeBiasio, Louis
通讯作者: DeBiasio, Louis