Separation Functions and Optimality Conditions in Vector Optimization

Manxue You () and Shengjie Li ()
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Manxue You: Chongqing University
Shengjie Li: Chongqing University

Journal of Optimization Theory and Applications, 2017, vol. 175, issue 2, No 12, 527-544

Abstract: Abstract In this paper, we propose weak separation functions in the image space for general constrained vector optimization problems on strong and weak vector minimum points. Gerstewitz function is applied to construct a special class of nonlinear separation functions as well as the corresponding generalized Lagrangian functions. By virtue of such nonlinear separation functions, we derive Lagrangian-type sufficient optimality conditions in a general context. Especially for nonconvex problems, we establish Lagrangian-type necessary optimality conditions under suitable restriction conditions, and we further deduce Karush–Kuhn–Tucker necessary conditions in terms of Clarke subdifferentials.

Keywords: Image space; Nonlinear separation; Lagrangian-type optimality condition; Karush–Kuhn–Tucker condition; 90C29; 90C46 (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (4)

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DOI: 10.1007/s10957-016-1029-4

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