The extremal function for partial bipartite tilings

The extremal function for partial bipartite tilings
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部分二分平铺的极值函数

DOI:
10.1016/j.ejc.2011.09.026
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发表时间:
2009
期刊:
Eur. J. Comb.
影响因子:
--
通讯作者:
J. Hladký
J. Hladký
中科院分区:
--
文献类型:
--
作者:
C. Grosu;J. Hladký

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对于给定α∈(0,1)的固定二部图H,我们确定了阈值TH(α),它保证任何至少有TH(α)n2条边的n顶点图包含(1−o(1))个αv(H)n个顶点不相交的H副本。Komlós, Tiling Turán定理,组合数学20(2)(2000)203-218]。
For a fixed bipartite graph H and given α∈(0,1), we determine the threshold TH(α) which guarantees that any n-vertex graph with at least TH(α)n2 edges contains (1−o(1))αv(H)n vertex-disjoint copies of H. In the proof, we use a variant of a technique developed by Komlós [J. Komlós, Tiling Turán theorems, Combinatorica 20 (2) (2000) 203–218].