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Optimality and duality with generalized convexity. (English) Zbl 0838.90114

Summary: Hanson and Mond have given sets of necessary and sufficient conditions for optimality and duality in constrained optimization by introducing classes of generalized convex functions, called type I and type II functions. Recently, Bector defined univex functions, a new class of functions that unifies several concepts of generalized convexity. In this paper, optimality and duality results for several mathematical programs are obtained combining the concepts of type I and univex functions. Examples of functions satisfying these conditions are given.

MSC:

90C30 Nonlinear programming
26B25 Convexity of real functions of several variables, generalizations
90C32 Fractional programming
90C29 Multi-objective and goal programming
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[1] Hanson, M. A.,On Sufficiency of the Kuhn-Tucker Conditions, Journal of Mathematical Analysis and Applications, Vol. 80, pp. 545–550, 1981. · Zbl 0463.90080 · doi:10.1016/0022-247X(81)90123-2
[2] Hanson, M. A., andMond, B.,Necessary and Sufficient Conditions in Constrained Optimization, Mathematical Programming, Vol. 37, pp. 51–58, 1987. · Zbl 0622.49005 · doi:10.1007/BF02591683
[3] Bector, C. R., andSingh, C.,B-Vex Functions, Journal of Optimization Theory and Applications, Vol. 71, pp. 237–253, 1991. · Zbl 0793.90069 · doi:10.1007/BF00939919
[4] Bector, C. R., Suneja, S. K., andLalitha, C. S.,Generalized B-Vex Functions and Generalized B-Vex Programming, Proceedings of the Administrative Sciences Association of Canada, pp. 42–53, 1991. · Zbl 0802.49027
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[9] Bector, M. K., Husain I., Chandra, S., andBector, C. R.,A Duality Model for a Generalized Minmax Program, Naval Research Logistics, Vol. 35, pp. 493–501, 1988. · Zbl 0652.90087 · doi:10.1002/1520-6750(198810)35:5<493::AID-NAV3220350512>3.0.CO;2-R
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