On Randomly Generated Intersecting Hypergraphs

Tom Bohman, Colin Cooper, Alan Frieze, Ryan Martin, Miklós Ruszinkó


Let $c$ be a positive constant. We show that if $r=\lfloor{cn^{1/3}}\rfloor$ and the members of ${[n]\choose r}$ are chosen sequentially at random to form an intersecting hypergraph then with limiting probability $(1+c^3)^{-1}$, as $n\to\infty$, the resulting family will be of maximum size ${n-1\choose r-1}$.

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