A Dirac-type Theorem for Berge Cycles in Random Hypergraphs
A Dirac-type Theorem for Berge Cycles in Random Hypergraphs
复制标题
随机超图中贝格循环的狄拉克型定理
DOI:
10.37236/8611
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Y. Person
中科院分区:
文献类型:
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作者:
Dennis Clemens;Julia Ehrenmüller;Y. Person
A Hamilton Berge cycle of a hypergraph on $n$ vertices is an alternating sequence $(v_1, e_1, v_2, \ldots, v_n, e_n)$ of distinct vertices $v_1, \ldots, v_n$ and distinct hyperedges $e_1, \ldots, e_n$ such that $\{v_1,v_n\}\subseteq e_n$ and $\{v_i, v_{i+1}\} \subseteq e_i$ for every $i\in [n-1]$. We prove the following Dirac-type theorem about Berge cycles in the binomial random $r$-uniform hypergraph $H^{(r)}(n,p)$: for every integer $r \geq 3$, every real $\gamma>0$ and $p \geq \frac{\ln^{17r} n}{n^{r-1}}$ asymptotically almost surely, every spanning subgraph $H \subseteq H^{(r)}(n,p)$ with minimum vertex degree $\delta_1(H) \geq \left(\frac{1}{2^{r-1}} + \gamma\right) p \binom{n}{r-1}$ contains a Hamilton Berge cycle. The minimum degree condition is asymptotically tight and the bound on $p$ is optimal up to some polylogarithmic factor.
影响因子:
--
作者:
Allen P
通讯作者:
Allen P
DOI:
10.1017/s0963548313000199
发表时间:
2013
期刊:
Combinatorics, Probability and Computing
影响因子:
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作者:
J. Böttcher;Y. Kohayakawa;A. Taraz
通讯作者:
A. Taraz
影响因子:
1
作者:
Hefetz D
通讯作者:
Hefetz D