Abstract
We extend results of R. Correa, Y. Garcia and A. Hantoute ["Integration formulas via the (Fenchel) subdifferential of nonconvex functions", Nonlinear Analysis 75(3) (2012) 1188-1201)] dealing with the integration of nonconvex epi-pointed functions using the Fenchel subdifferential. In this line, we prove that the classical formula of Rockafellar in the convex setting is still valid in general locally convex spaces for an appropriate family of nonconvex epi-pointed functions, namely those we call SDPD. The current integration formulas use the Fenchel subdifferential of the involved functions to compare the corresponding closed convex envelopes. Some examples of SDPD functions are investigated. This analysis leads us to approach a useful family of locally convex spaces, referred to as the SDPD, having an RNP-like property
References
- G. Beer: Topologies on Closed and Closed Convex Sets, Kluwer, Dordrecht (1993).https://doi.org/10.1007/978-94-015-8149-3Google Scholar
- J. Benoist, A. Daniilidis: Integration of Fenchel subdifferentials of epi-pointed functions, SIAM J. Optim. 12(3) (2002) 575–582.https://doi.org/10.1137/S0152623400381279Google Scholar
- J. Borwein, J. Vanderwerff: Convex Functions: Constructions, Characterizations and Counterexamples, Cambridge University Press, Cambridge (2010).https://doi.org/10.1017/CBO9781139087322Google Scholar
- R. D. Bourgin: Geometric Aspects of Convex Sets with the Radon-Nikodým Property, Lecture Notes in Mathematics 993, Springer, New York (1983).https://doi.org/10.1007/BFb0069321Google Scholar
- A. K. Chakrabarty, P. Shunmunagaraj, C. Zălinescu: Continuity properties for the subdifferential and ε-subdifferential of a convex function and its conjugate, J. Convex Analysis 14(3) (2007) 479–514.https://doi.org/10.68381/jca14031Google Scholar
- R. Correa, Y. Garcia, A. Hantoute: Integration formulas via the Fenchel subdifferential of nonconvex functions, Nonlinear Anal. 75(3) (2012) 1188–1201.https://doi.org/10.1016/j.na.2011.05.085Google Scholar
- R. Correa, A. Jofré: Some properties of semismooth and regular functions in nonsmooth analysis, in: Recent Advances in System Modelling and Optimization (Santiago, 1984), L. Contesse, R. Correa, A. Weintraub (eds.), Lecture Notes in Control and Information Sciences 87, Springer, Berlin (1986) 69–85.https://doi.org/10.1007/BFb0006780Google Scholar
- M. Fabian, P. Habala, P. Hájek, V. Montesinos, V. Zizler: Banach Space Theory: The Basis for Linear and Nonlinear Analysis, CMS Books in Mathematics, Springer, New York (2010).https://doi.org/10.1007/978-1-4419-7515-7Google Scholar
- J. B. Hiriart-Urruty, J. Benoist: What is the subdifferential of the closed convex hull of a function?, SIAM J. Math. Anal. 27(6) (1996) 1661–1679.https://doi.org/10.1137/S0036141094265936Google Scholar
- J. J. Moreau: Fonctionnelles convexes, Séminaire Jean Leray 2 (1966–67) 1–108.Google Scholar
- J. J. Moreau: Proximité et dualité dans un espace hilbertien, Bull. Soc. Math. Fr. 93 (1965) 273–299.https://doi.org/10.24033/bsmf.1625Google Scholar
- R. R. Phelps: Convex Functions, Monotone Operators, and Differentiability, Lecture Notes in Mathematics 1364, Springer, Berlin (1989).https://doi.org/10.1007/978-3-662-21569-2Google Scholar
- R. Poliquin: Integration of subdifferentials of nonconvex functions, Nonlinear Anal. 17(4) (1991) 385–398.https://doi.org/10.1016/0362-546X(91)90078-FGoogle Scholar
- R. T. Rockafellar: Characterization of the subdifferentials of convex functions, Pac. J. Math. 17 (1966) 497–510.https://doi.org/10.2140/pjm.1966.17.497Google Scholar
- D. Salas: Fórmula de Integración en Espacios con la Propiedad de Continuidad del Subdiferencial, Master’s Thesis, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago (2013).Google Scholar
- H. Schaefer, M. Wolff: Topological Vector Spaces, 2nd Ed., Springer, New York (1999).https://doi.org/10.1007/978-1-4612-1468-7Google Scholar
- L. Thibault, D. Zagrodny: Integration of subdifferentials of lower semicontinuous functions on Banach spaces, J. Math. Anal. Appl. 189(1) (1995) 33–58.https://doi.org/10.1006/jmaa.1995.1003Google Scholar
- L. Thibault, D. Zagrodny: Subdifferential determination of essentially directionally smooth functions in Banach space, SIAM J. Optim. 20(5) (2010) 2300–2326.https://doi.org/10.1137/090754571Google Scholar
- L. Thibault, N. Zlateva: Integrability of subdifferentials of directionally Lipschitz functions, Proc. Amer. Math. Soc. 133(10) (2005) 2939–2948.https://doi.org/10.1090/S0002-9939-05-07883-4Google Scholar
- C. Zălinescu: Convex Analysis in General Vector Spaces, World Scientific, River Edge (2002).https://doi.org/10.1142/5021Google Scholar
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Published by Heldermann Verlag, 2016. Rights now held by Banach Press.
