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• W2153451837 abstract "We consider the problem of global minimization of rational functions on (unconstrained case), and on an open, connected, semi-algebraic subset of , or the (partial) closure of such a set (constrained case). We show that in the univariate case (n = 1), these problems have exact reformulations as semidefinite programming (SDP) problems, by using reformulations introduced in the PhD thesis of Jibetean [16]. This extends the analogous results by Nesterov [13] for global minimization of univariate polynomials. For the bivariate case (n = 2), we obtain a fully polynomial time approximation scheme (FPTAS) for the unconstrained problem, if an a priori lower bound on the infimum is known, by using results by De Klerk and Pasechnik [1]. For the NP-hard multivariate case, we discuss semidefinite programming-based relaxations for obtaining lower bounds on the infimum, by using results by Parrilo [15], and Lasserre [12]." @default.
• W2153451837 created "2016-06-24" @default.
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• W2153451837 date "2005-04-28" @default.
• W2153451837 modified "2023-09-27" @default.
• W2153451837 title "Global optimization of rational functions: a semidefinite programming approach" @default.
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• W2153451837 doi "https://doi.org/10.1007/s10107-005-0589-0" @default.
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