Largest sparse subgraphs of random graphs.

For the Erdos-Rényi random graph Gn,p, we consider the order of a largest vertex subset that induces a subgraph with average degree at most t. For the case when both p and t are fixed, this value is asymptotically almost surely concentrated on at most two explicitly given points. This generalises a...

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Bibliographic Details
Main Authors: Fountoulakis, N, Kang, R, McDiarmid, C
Format: Journal article
Language:English
Published: 2011
Description
Summary:For the Erdos-Rényi random graph Gn,p, we consider the order of a largest vertex subset that induces a subgraph with average degree at most t. For the case when both p and t are fixed, this value is asymptotically almost surely concentrated on at most two explicitly given points. This generalises a result on the independence number of random graphs. For both the upper and lower bounds, we rely on large deviations inequalities for the binomial distribution. © 2011 Elsevier B.V.