The Size of the Giant Component of a Random Graph with a Given Degree Sequence

  • Authors:
  • Michael Molloy;Bruce Reed

  • Affiliations:
  • Department of Computer Science, University of Toronto, Toronto, Canada (e-mail: molloy@cs.toronto.edu);Equipe Combinatoire, CNRS, Université Pierre et Marie Curie, Paris, France (e-mail: reed@ecp6.jussieu.fr)

  • Venue:
  • Combinatorics, Probability and Computing
  • Year:
  • 1998

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Abstract

Given a sequence of nonnegative real numbers λ0, λ1, … that sum to 1, we consider a random graph having approximately λin vertices of degree i. In [12] the authors essentially show that if ∑i(i−2)λi0 then the graph a.s. has a giant component, while if ∑i(i−2)λi0, λ′1 … such that a.s. the giant component, C, has εn+o(n) vertices, and the structure of the graph remaining after deleting C is basically that of a random graph with n′=n−∣C∣ vertices, and with λ′in′ of them of degree i.