Approximating the treewidth of AT-free graphs

Authors:
Vincent Bouchitté;Ioan Todinca
Affiliations:
LIP, Ecole normale supèrieure 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 - Special issue: The second international colloquium, "journées de l'informatique messine"
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.