Abstract
We establish connections between some concepts of generalized monotonicity for set-valued maps introduced earlier and some notions of generalized convexity. Moreover, a notion of pseudomonotonicity for set-valued maps is introduced; it is shown that, if a function f is continuous, then its pseudoconvexity is equivalent to the pseudomonotonicity of its generalized subdifferential in the sense of Clarke and Rockafellar.
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MINTY, G., On the Monotonicity of the Gradient of a Convex Function, Pacific Journal of Mathematics, Vol. 14, pp. 243–247, 1964.
ROCKAFELLAR, R. T., Convex Analysis, Princeton University Press, Princeton, New Jersey, 1970.
CLARKE, F. H., Optimization and Nonsmooth Analysis, Wiley, New York, New York, 1983.
POLIQUIN, R., Subgradient Monotonicity and Convex Functions, Nonlinear Analysis: Theory, Methods and Applications, Vol. 14, pp. 305–317, 1990.
CORREA, R., JOFRE, A., and THIBAULT, L., Characterization of Lower Semicontinuous Convex Functions, Proceedings of the American Mathematical Society, Vol. 116 pp. 67–72, 1992.
LUC, D. T., Characterizations of Quasiconvex Functions, Bulletin of the Australian Mathematical Society, Vol. 48, pp. 393–405, 1993.
AVRIEL, M., DIEWERT, W. E., SCHAIBLE, S., and ZANG, I., Generalized Concavity, Plenum Press, New York, New York, 1988.
ELLAIA, R., and HASSOUNI, A., Characterization of Nonsmooth Functions through Their Generalized Gradients, Optimization, Vol. 22, pp. 401–416, 1991.
HASSOUNI, A., Quasimonotone Multifunctions: Applications to Optimality Conditions in Quasiconvex Programming (to appear).
LUC, D. T., On Generalized Convex Nonsmooth Functions, Bulletin of the Australian Mathematical Society, Vol. 49, pp. 139–149, 1994.
HADJISAVVAS, N., and SCHAIBLE, S., On Strong Pseudomonotonicity and (Semi) Strict Quasimonotonicity, Journal of Optimization Theory and Applications, Vol. 79, pp. 139–155, 1993.
KARAMARDIAN, S., and SCHAIBLE, S., Seven Kinds of Monotone Maps, Journal of Optimization Theory and Applications, Vol. 66, pp. 37–46, 1990.
KARAMARDIAN, S., SCHAIBLE, S., and CROUZEIX, J.-P., Characterizations of Generalized Monotone Maps, Journal of Optimization Theory and Applications, Vol. 76, pp. 399–413, 1993.
SCHAIBLE, S., Generalized Monotone Maps, Nonsmooth Optimization: Methods and Applications, Edited by F. Giannessi, Gordon and Breach Science Publishers, Amsterdam, Holland, pp. 392–408, 1992.
ROCKAFELLAR, R. T., Generalized Directional Derivatives and Subgradients of Nonconvex Functions, Canadian Journal of Mathematics, Vol. 32, pp. 257–280, 1980.
KOMLOSI, S., Monotonicity and Quasimonotonicity for Multifunctions, Optimization of Generalized Convex Problems in Economics, Proceedings of a Workshop Held in Milan, Italy, Edited by P. Mazzoleni, pp. 27–38, 1994.
REILAND, T. W., Nonsmooth Invexity, Bulletin of the Australian Mathematical Society, Vol. 42, pp. 437–446, 1990.
LEBOURG, G., Valeur Moyenne pour un Gradient Généralisé, Comptes Rendus de l'Académie des Sciences, Paris, Vol. 281, pp. 795–797, 1975.
PLASTRIA, F., Lower Subdifferentiable Functions and Their Minimization by Cutting Plane, Journal of Optimization Theory and Applications, Vol. 46, pp. 37–53, 1985.
AUSSEL, D., CORVELLEC, J. N., and LASSONDE, M., Subdifferential Characterization of Quasiconvexity and Convexity, Journal of Convex Analysis, Vol. 1, pp. 195–201.
PENOT, J. P., Generalized Convexity in the Light of Nonsmooth Analysis, Proceedings of the 7th French-German Conference on Optimization, Dijon, France, 1994; Edited by R. Duriez and C. Michelot, Lecture Notes in Mathematical Systems and Economics, Springer Verlag, Berlin, Germany, Vol. 429, pp. 269–290, 1995.
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Penot, JP., Quang, P.H. Generalized Convexity of Functions and Generalized Monotonicity of Set-Valued Maps. Journal of Optimization Theory and Applications 92, 343–356 (1997). https://doi.org/10.1023/A:1022659230603
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DOI: https://doi.org/10.1023/A:1022659230603