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Generalized nonsmooth invexity over cones in vector optimization. (English) Zbl 1175.90365
Summary: $k$-nonsmooth quasi-invex and (strictly or strongly) $k$-nonsmooth pseudo-invex functions are defined. By utilizing these new concepts, the Fritz-John type and Kuhn-Tucker type necessary optimality conditions and number of sufficient optimality conditions are established for a nonsmooth vector optimization problem wherein Clarke’s generalized gradient is used. Further a Mond Weir type dual is associated and weak and strong duality results are obtained.

##### MSC:
 90C29 Multi-objective programming; goal programming 90C46 Optimality conditions, duality
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##### References:
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