A phase transition for avoiding a giant component

  • Authors:
  • Tom Bohman;Jeong Han Kim

  • Affiliations:
  • Department of Mathematical Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania 1521;Microsoft Research, One Microsoft Way, Redmond, WA 98052

  • Venue:
  • Random Structures & Algorithms
  • Year:
  • 2006

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Abstract

Let c be a constant and (e1,f1),(e2,f2),…,(ecn,fcn) be a sequence of ordered pairs of edges from the complete graph Kn chosen uniformly and independently at random. We prove that there exists a constant c2 such that if c c2, then whp every graph which contains at least one edge from each ordered pair (ei,fi) has a component of size Ω(n), and, if c c2, then whp there is a graph containing at least one edge from each pair that has no component with more than O(n1-ε vertices, where ε is a constant that depends on c2 - c. The constant c2 is roughly 0.97677. © 2005 Wiley Periodicals, Inc. Random Struct. Alg., 2006