Mathematics – Combinatorics
Scientific paper
2008-08-14
Mathematics
Combinatorics
Scientific paper
An old problem of Erd\H{o}s, Fajtlowicz and Staton asks for the order of a largest induced regular subgraph that can be found in every graph on n vertices. Motivated by this problem, we consider the order of such a subgraph in a typical graph on n vertices, i.e., in a binomial random graph G(n,1/2). We prove that with high probability a largest induced regular subgraph of G(n,1/2) has about n^{2/3} vertices.
Krivelevich Michael
Sudakov Benny
Wormald Nicholas
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