Results 11 to 20 of about 335 (149)

Geometric approach to convex subdifferential calculus

open access: yesOptimization, 2015
In this paper, we develop a geometric approach to convex subdifferential calculus in finite dimensions with employing some ideas of modern variational analysis. This approach allows us to obtain natural and rather easy proofs of basic results of convex subdifferential calculus in full generality and also derive new results of convex analysis concerning
Mordukhovich, Boris S., Nam, Nguyen Mau
openaire   +4 more sources

A useful subdifferential in the Calculus of Variations

open access: yesNonlinear Analysis
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bettiol P., De Marco G., Mariconda C.
core   +6 more sources

Subdifferential calculus for convex operators

open access: yesJournal of Mathematical Analysis and Applications, 1981
AbstractWell-known scalar results on the Subdifferential of composite functions are extended to the framework of ordered topological vector spaces. This is done by using the sandwich theorem for convex operators which is derived from an extension of the Hahn-Banach theorem.
Thera, Michel
openaire   +2 more sources

Subdifferential calculus in Asplund generated spaces

open access: yesJournal of Mathematical Analysis and Applications, 2006
In the paper under review some definitions and results of \textit{B. S. Mordukhovich} and \textit{Y. Shao} [Trans. Am. Math. Soc. 348, 1235--1280 (1996; Zbl 0881.49009)] on subdifferential calculus are extended from Asplund to Asplund generated spaces.
Fabian, M. (Marián)   +2 more
openaire   +5 more sources

Abstract subdifferential calculus and semi-convex functions [PDF]

open access: yes, 1997
In this paper the authors follow a path that has become popular recently: to introduce and investigate a notion of abstract subdifferential for lower semi-continuous functions in Banach spaces by requiring the candidate for subdifferential to satisfy a priori given (inspired from subdifferential calculus) properties.
Ivanov, Milen, Zlateva, Nadia
openaire   +3 more sources

Towards Supremum-Sum Subdifferential Calculus Free of Qualification Conditions

open access: yesSIAM Journal on Optimization, 2016
We give a formula for the subdifferential of the sum of two convex functions where one of them is the supremum of an arbitrary family of convex functions. This is carried out under a weak assumption expressing a natural relationship between the lower semicontinuous envelopes of the data functions in the domain of the sum function. We also provide a new
Rafael Correa   +2 more
openaire   +4 more sources

Characterizations of convex approximate subdifferential calculus in Banach spaces [PDF]

open access: yes, 2016
International audienceWe establish subdifferential calculus rules for the sum of convex functions defined on normed spaces. This is achieved by means of a condition relying on the continuity behaviour of the inf-convolution of their corresponding ...
Hantoute, Abderrahim   +2 more
core   +2 more sources

Weaker conditions for subdifferential calculus of convex functions [PDF]

open access: yes, 2016
In this paper we establish new rules for the calculus of the subdifferential mapping of the sum of two convex functions. Our results are established under conditions which are at an intermediate level of generality among those leading to the Hiriart ...
López, Marco   +5 more
core   +1 more source

Enlargements of the Moreau-Rockafellar Subdifferential

open access: yes, 2021
The Moreau-Rockafellar subdifferential is a highly important notion in convex analysis and optimization theory. But there are many functions which fail to be subdifferentiable at certain points.
Kruger, Alexander, y   +3 more
core   +1 more source

Sequential ε-Subdifferential Calculus for Scalar and Vector Mappings

open access: yes, 2017
International audienceIn this paper, several sequential formulae are obtained for the Brøndsted-Rockafellar ε-subdifferential of the sum and the composition of two convex and lower semicontinuous mappings defined in reflexive ...
Huerga, L.   +3 more
core   +1 more source

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