
arXiv: 2110.08876
Let $N=\binom{n}{2}$ and $s\geq 2$. Let $e_{i,j},\,i=1,2,\ldots,N,\,j=1,2,\ldots,s$ be $s$ independent permutations of the edges $E(K_n)$ of the complete graph $K_n$. A MultiTree is a set $I\subseteq [N]$ such that the edge sets $E_{I,j}$ induce spanning trees for $j=1,2,\ldots,s$. In this paper we study the following question: what is the smallest $m=m(n)$ such that w.h.p. $[m]$ contains a MultiTree. We prove a hitting time result for $s=2$ and an $O(n\log n)$ bound for $s\geq 3$.
random permutation, Random graphs (graph-theoretic aspects), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO), Trees, multitree
random permutation, Random graphs (graph-theoretic aspects), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO), Trees, multitree
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