Approximating the treewidth of AT-free graphs

  • Authors:
  • Vincent Bouchitté;Ioan Todinca

  • Affiliations:
  • LIP, Ecole normale supérieure de Lyon, 46 Allée d'Italie, 69364 Lyon Cedex 07, France;LIFO, Université d'Orléans, BP 6759, 45067 Orléans Cedex 2, France

  • Venue:
  • Discrete Applied Mathematics
  • Year:
  • 2003

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Abstract

Using the specific structure of the minimal separators of AT-free graphs, we give a polynomial time algorithm that computes a triangulation whose width is no more than twice the treewidth of the input graph.