Asymptotically optimal frugal colouring

  • Authors:
  • Michael Molloy;Bruce Reed

  • Affiliations:
  • Department of Computer Science, University of Toronto, Canada;Canada Research Chair in the Combinatorics of Complex Networks, School of Computer Science, McGill University, Canada

  • Venue:
  • Journal of Combinatorial Theory Series B
  • Year:
  • 2010

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Abstract

We prove that every graph with maximum degree @D can be properly (@D+1)-coloured so that no colour appears more than O(log@D/loglog@D) times in the neighbourhood of any vertex. This is best possible up to the constant multiple in the O(-) term.