Abstract.
We analyze the application of lift-and-project to the clique relaxation of the stable set polytope. We characterize all the inequalities that can be generated through the application of the lift-and-project procedure, introduce the concept of 1-perfection and prove its equivalence to minimal imperfection. This characterization of inequalities and minimal imperfection leads to a generalization of the Perfect Graph Theorem of Lovász, as proved by Aguilera, Escalante and Nasini [1].
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Mathematics Subject Classification: 05C17, 90C57
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Ceria, S. Lift-and-project cuts and perfect graphs. Math. Program., Ser. B 98, 309–317 (2003). https://doi.org/10.1007/s10107-003-0406-6
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DOI: https://doi.org/10.1007/s10107-003-0406-6