Rights statement: 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 peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Operations Research Letters, 49, 4, 2021, 586-589 DOI: doi.org/10.1016/j.orl.2021.06.00810.1016/j.orl.2021.06.008
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Strengthened clique-family inequalities for the stable set polytope
AU - Letchford, Adam
AU - Ventura, Paolo
N1 - 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 peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Operations Research Letters, 49, 4, 2021, 586-589 DOI: doi.org/10.1016/j.orl.2021.06.00810.1016/j.orl.2021.06.008
PY - 2021/7/31
Y1 - 2021/7/31
N2 - 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.
AB - 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.
KW - Combinatorial optimization
KW - Stable set problem
KW - Polyhedral combinatorics
U2 - 10.1016/j.orl.2021.06.008
DO - 10.1016/j.orl.2021.06.008
M3 - Journal article
VL - 49
SP - 586
EP - 589
JO - Operations Research Letters
JF - Operations Research Letters
SN - 0167-6377
IS - 4
ER -