Co-degrees resilience for perfect matchings in random hypergraphs

In this paper we prove an optimal co-degrees resilience property for the binomial \(k\)-uniform hypergraph model \(H_{n,p}^k\) with respect to perfect matchings. That is, for a sufficiently large \(n\) which is divisible by \(k\), and \(p\geq C_k\log_n/n\), we prove that with high probability every...

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Veröffentlicht in:arXiv.org 2020-02
Hauptverfasser: Ferber, Asaf, Hirschfeld, Lior
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Sprache:eng
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Zusammenfassung:In this paper we prove an optimal co-degrees resilience property for the binomial \(k\)-uniform hypergraph model \(H_{n,p}^k\) with respect to perfect matchings. That is, for a sufficiently large \(n\) which is divisible by \(k\), and \(p\geq C_k\log_n/n\), we prove that with high probability every subgraph \(H\subseteq H^k_{n,p}\) with minimum co-degree (meaning, the number of supersets every set of size \(k-1\) is contained in) at least \((1/2+o(1))np\) contains a perfect matching.
ISSN:2331-8422
DOI:10.48550/arxiv.1908.01435