Rainbow perfect matchings for 4-uniform hypergraphs
Rainbow perfect matchings for 4-uniform hypergraphs
Let $n$ be a sufficiently large integer with $n\equiv 0\pmod 4$ and let $F_i \subseteq{[n]\choose 4}$ where $i\in [n/4]$. We show that if each vertex of $F_i$ is contained in more than ${n-1\choose 3}-{3n/4\choose 3}$ edges, then $\{F_1, \ldots ,F_{n/4}\}$ admits a rainbow matching, i.e., a set of $n/4$ edges consisting of one edge from each $F_i$. This generalizes a deep result of Khan on perfect matchings in 4-uniform hypergraphs.
Yan Wang、Xingxing Yu、Hongliang Lu
数学
Yan Wang,Xingxing Yu,Hongliang Lu.Rainbow perfect matchings for 4-uniform hypergraphs[EB/OL].(2021-05-18)[2025-08-10].https://arxiv.org/abs/2105.08608.点此复制
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