A simple branching process approach to the phase transition in $G_{n,p}$

It is well known that the branching process approach to the study of the random graph $G_{n,p}$ gives a very simple way of understanding the size of the giant component when it is fairly large (of order $\Theta(n)$). Here we show that a variant of this approach works all the way down to the phase tr...

Descrición completa

Detalles Bibliográficos
Main Authors: Bollobas, B, Riordan, O
Formato: Journal article
Idioma:English
Publicado: 2012
Descripción
Summary:It is well known that the branching process approach to the study of the random graph $G_{n,p}$ gives a very simple way of understanding the size of the giant component when it is fairly large (of order $\Theta(n)$). Here we show that a variant of this approach works all the way down to the phase transition: we use branching process arguments to give a simple new derivation of the asymptotic size of the largest component whenever $(np-1)^3n\to\infty$.