Strengthened clique-family inequalities for the stable set polytope

Letchford, Adam and Ventura, Paolo (2021) Strengthened clique-family inequalities for the stable set polytope. Operations Research Letters, 49 (4). pp. 586-589. ISSN 0167-6377

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The stable set polytope is a fundamental object in combinatorial optimisation. Among the many valid inequalities that are known for it, the clique-family inequalities play an important role. Pecher and Wagler showed that the clique-family inequalities can be strengthened under certain conditions. We show that they can be strengthened even further, using a surprisingly simple mixed-integer rounding argument.

Item Type:
Journal Article
Journal or Publication Title:
Operations Research Letters
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This is the author’s version of a work that was accepted for publication in Operations Research Letters. Changes resulting from the publishing process, such as editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Operations Research Letters, 2021, vol. 49, issue 4, pp. 586-589. DOI: 10.1016/j.orl.2021.06.008
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09 Jun 2021 09:20
Last Modified:
17 Jun 2021 08:06