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The First k-Regular Subgraph is Large
Published online by Cambridge University Press: 07 April 2014
Abstract
Let $(G_m)_{0\le m\le \binom{n}{2}}$ be the random graph process starting from the empty graph on vertex set [n] and with a random edge added in each step. Let mk denote the minimum integer such that Gmk contains a k-regular subgraph. We prove that for all sufficiently large k, there exist two constants εk ≥ σk > 0, with εk → 0 as k → ∞, such that asymptotically almost surely any k-regular subgraph of Gmk has size between (1 − εk)|${\mathcal C}_k$| and (1 − σk)|${\mathcal C}_k$|, where ${\mathcal C}_k$ denotes the k-core of Gmk.
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- Copyright © Cambridge University Press 2014
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