An algorithmic approach to the lovász local lemma. I

  • Authors:
  • József Beck

  • Affiliations:
  • Eötvös Loránd University, Department of Mathematics, Budapest, Múzeum krt. 6‐8, Hungary 1088 and Rutgers University, Department of Mathematics, Hill Center, Busc ...

  • Venue:
  • Random Structures & Algorithms
  • Year:
  • 1991

Quantified Score

Hi-index 0.01

Visualization

Abstract

The Lovász Local Lemma is a remarkable sieve method to prove the existence of certain structures without supplying any efficient way of finding these structures. In this article we convert some of the applications of the Local Lemma into polynomial time sequential algorithms (at the cost of a weaker constant factor in the “exponent”). Our main example is the following: assume that in an n‐uniform hypergraph every hyperedge intersects at most 2n/48 other hyperedges, then there is a polynomial time algorithm that finds a two‐coloring of the points such that no hyperedge is monochromatic. © 1991 Wiley Periodicals, Inc.