Abstract
In this paper, we study optimization problems where the objective function and the binding constraints are set-valued maps and the solutions are defined by means of set-relations among all the images sets (Kuroiwa, D. in Takahashi, W., Tanaka, T. (eds.) Nonlinear analysis and convex analysis, pp. 221–228, 1999). We introduce a new dual problem, establish some duality theorems and obtain a Lagrangian multiplier rule of nonlinear type under convexity assumptions. A necessary condition and a sufficient condition for the existence of saddle points are given.
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Communicated by X.Q. Yang.
The authors thank the two referees for valuable comments and suggestions on early versions of the paper. The research of the first author was partially supported by Ministerio de Educación y Ciencia (Spain) Project MTM2006-02629 and by Junta de Castilla y León (Spain) Project VA027B06.
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Hernández, E., Rodríguez-Marín, L. Lagrangian Duality in Set-Valued Optimization. J Optim Theory Appl 134, 119–134 (2007). https://doi.org/10.1007/s10957-007-9237-6
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DOI: https://doi.org/10.1007/s10957-007-9237-6