We prove several complexity results about the gap inequalities for the max-cut problem, including (i) the gap-1 inequalities do not imply the other gap inequalities, unless NP==Co NP; (ii) there must exist non-redundant gap inequalities with exponentially large coefficients, unless NP=Co NP; (iii) the associated separation problem can be solved in finite (doubly exponential) time.
Autori interni: | |
Autori: | Galli, Laura; Kaparis, Konstantinos; Letchford, Adam |
Titolo: | Complexity results for the gap inequalities for the max-cut problem |
Anno del prodotto: | 2012 |
Abstract: | We prove several complexity results about the gap inequalities for the max-cut problem, including (i) the gap-1 inequalities do not imply the other gap inequalities, unless NP==Co NP; (ii) there must exist non-redundant gap inequalities with exponentially large coefficients, unless NP=Co NP; (iii) the associated separation problem can be solved in finite (doubly exponential) time. |
Digital Object Identifier (DOI): | 10.1016/j.orl.2012.01.010 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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