Valadier-like Formulas for the Supremum Function. II: The Compactly Indexed Case
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Título: | Valadier-like Formulas for the Supremum Function. II: The Compactly Indexed Case |
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Autor/es: | Correa, Rafael | Hantoute, Abderrahim | López Cerdá, Marco A. |
Grupo/s de investigación o GITE: | Laboratorio de Optimización (LOPT) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Matemáticas |
Palabras clave: | Pointwise supremum function | Convex functions | Compact index set | Fenchel subdifferential | Valadier-like formulas |
Área/s de conocimiento: | Estadística e Investigación Operativa |
Fecha de publicación: | 2019 |
Editor: | Heldermann Verlag |
Cita bibliográfica: | Journal of Convex Analysis. 2019, 26(1): 299-324 |
Resumen: | Continuing part I of this article of the same authors [Valadier-like formulas for the supremum function I, J. Convex Analysis 25(4) (2018) 1253--1278], we focus now on the compactly indexed case. We assume that the index set is compact and that the data functions are upper semicontinuous with respect to the index variable (actually, this assumption will only affect the set of ε-active indices at the reference point). As in the previous work, we do not require any continuity assumption with respect to the decision variable. The current compact setting gives rise to more explicit formulas, which only involve subdifferentials at the reference point of active data functions. Other formulas are derived under weak continuity assumptions. These formulas reduce to the characterization given by M. Valadier [Sous-différentiels d'une borne supérieure et d'une somme continue de fonctions convexes, C. R. Acad. Sci. Paris, Sér. A-B Math. 268 (1969) 39--42; Theorem 2] when the supremum function is continuous. |
Patrocinador/es: | Research of the first and the second authors is supported by CONICYT grants, Fondecyt no. 1150909 and 1151003, and Basal PFB-03. Research of the second and third authors is supported by MINECO of Spain and FEDER of EU, grant MTM2014-59179-C2-1-P. Research of the third author is also supported by the Australian Research Council, Project DP160100854. |
URI: | http://hdl.handle.net/10045/79623 |
ISSN: | 0944-6532 (Print) | 2363-6394 (Online) |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © Heldermann Verlag |
Revisión científica: | si |
Versión del editor: | http://www.heldermann.de/JCA/JCA26/JCA261/jca26017.htm |
Aparece en las colecciones: | INV - LOPT - Artículos de Revistas INV - GAM - Artículos de Revistas |
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