Congruence Distributivity Implies Bounded Width

  • Authors:
  • Libor Barto;Marcin Kozik

  • Affiliations:
  • libor.barto@gmail.com;kozik@tcs.uj.edu.pl

  • Venue:
  • SIAM Journal on Computing
  • Year:
  • 2009

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Abstract

We show that a constraint language with compatible Jónsson terms (or, equivalently, associated with an algebra generating a congruence distributive variety) defines a constraint satisfaction problem solvable by the local consistency checking algorithm.