Necessary and sufficient optimality conditions for a class of nonsmooth minimization problems
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The purpose of this paper is to derive, in a unified way, second order necessary and sufficient optimality criteria, for four types of nonsmooth minimization problems: thediscrete minimax problem, thediscrete l1-approximation, the minimization of theexact penalty function and the minimization of theclassical exterior penalty function. Our results correct and supplement conditions obtained by various authors in recent papers.
Key wordsNecessary and Sufficient Second Order Conditions Nonsmooth Optimization Minimax Problem l1-Approximation Penalty Functions Directional Derivatives
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