Radial Solutions and Orthogonal Trajectories in Multiobjective Global Optimization

A. Balbás, E. Galperin and P. Jiménez-Guerra
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A. Balbás: Universidad Carlos III
E. Galperin: Université du Québec à Montréal
P. Jiménez-Guerra: Universidad Nacional de Educación a Distancia

Journal of Optimization Theory and Applications, 2002, vol. 115, issue 2, No 4, 315-344

Abstract: Abstract This paper presents a new, ray-oriented method for the global solution of nonscalarized vector optimization problems and a framework for the application of the Karush–Kuhn–Tucker theorem to such problems. Properties of nonlinear multiobjective problems implied by the Karush–Kuhn–Tucker necessary conditions are investigated. The regular case specific to nonscalarized MOPs is singled out when a nonlinear MOP with nonlinearities only in the constraints reduces to a nondegenerate linear system. It is shown that the trajectories of the Lagrange multipliers corresponding to the components of the vector cost function are orthogonal to the corresponding trajectories of the vector deviations in the balance space (to the balance set for Pareto solutions). Illustrative examples are presented.

Keywords: Vector optimization; nonscalarized multiobjective programming (search for similar items in EconPapers)
Date: 2002
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DOI: 10.1023/A:1020836221527

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