A constructive proof of the general lovász local lemma

  • Authors:
  • Robin A. Moser;Gábor Tardos

  • Affiliations:
  • ETH Zürich, Switzerland;Simon Fraser University, Burnaby BC, Canada and Rényi Institute, Budapest, Hungary

  • Venue:
  • Journal of the ACM (JACM)
  • Year:
  • 2010

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Abstract

The Lovász Local Lemma discovered by Erdős and Lovász in 1975 is a powerful tool to non-constructively prove the existence of combinatorial objects meeting a prescribed collection of criteria. In 1991, József Beck was the first to demonstrate that a constructive variant can be given under certain more restrictive conditions, starting a whole line of research aimed at improving his algorithm's performance and relaxing its restrictions. In the present article, we improve upon recent findings so as to provide a method for making almost all known applications of the general Local Lemma algorithmic.