中文

超图中与均匀性无关的最小度完美匹配条件

组合数学 2019-04-09 v2

摘要

在本注记中,我们证明存在通用常数c=4350c=\frac{43}{50},使得对任意kNk\in \mathbb{N}与任意d<k/2d<k/2,每个具有nn个顶点且最小dd-度至少为(c+on(1))(ndkd)(c+o_n(1))\binom{n-d}{k-d}kk-均匀超图均包含完美匹配。这是首个与kk无关的此类界,因而在kk较大时改进了所有先前已知的界。我们的方法基于将Alon等人的开创性工作与Feige所猜想的概率不等式的已知界相结合。

关键词

引用

@article{arxiv.1903.12207,
  title  = {Uniformity-independent minimum degree conditions for perfect matchings in hypergraphs},
  author = {Asaf Ferber and Vishesh Jain},
  journal= {arXiv preprint arXiv:1903.12207},
  year   = {2019}
}

备注

After this note appeared on the arXiv, we were informed that similar observations are implicit in the literature; see Remark 1.6