Abstract
We show how to separate a doubly nonnegative matrix, which is not completely positive and has a triangle-free graph, from the completely positive cone. This method can be used to compute cutting planes for semidefinite relaxations of combinatorial problems. We illustrate our approach by numerical tests on the stable set problem.
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We are grateful to the referees for their careful reading and helpful comments.
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This work was supported by Grant no. G-18-304.2/2011 by the German-Israeli Foundation for Scientific Research and Development (GIF).
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Berman, A., Dür, M., Shaked-Monderer, N. et al. Cutting planes for semidefinite relaxations based on triangle-free subgraphs. Optim Lett 10, 433–446 (2016). https://doi.org/10.1007/s11590-015-0922-3
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DOI: https://doi.org/10.1007/s11590-015-0922-3