Random planar graphs

  • Authors:
  • Colin McDiarmid;Angelika Steger;Dominic J. A. Welsh

  • Affiliations:
  • Department of Statistics, University of Oxford, 1 South Parks Road, Oxford OX1 3TG, UK;Institut für Theoretische Informatik, ETH Zürich, 8092 Zürich, Switzerland;Mathematical Institute, University of Oxford, Oxford OX1 3LB, UK

  • Venue:
  • Journal of Combinatorial Theory Series B
  • Year:
  • 2005

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Abstract

We study various properties of the random planar graph Rn, drawn uniformly at random from the class Pn of all simple planar graphs on n labelled vertices. In particular, we show that the probability that Rn is connected is bounded away from 0 and from 1. We also show for example that each positive integer k, with high probability Rn has linearly many vertices of a given degree, in each embedding Rn has linearly many faces of a given size, and Rn has exponentially many automorphisms.