Results 21 to 30 of about 2,024 (222)

Local subdifferentials and multivariational inequalities in Banach and Frechet spaces [PDF]

open access: yesOpuscula Mathematica, 2008
Some functional-topological concepts of subdifferential and locally subdifferential maps in Frechet spaces are established. Multivariational inequalities with an operator of the pseudo-monotone type, connected with subdifferential maps, are considered.
Pavlo O. Kasyanov   +2 more
doaj  

ON TWO-SIDED UNIDIRECTIONAL MEAN VALUE INEQUALITY IN A FRÉCHET SMOOTH SPACE

open access: yesUral Mathematical Journal, 2023
The paper is devoted to a new unidirectional mean value inequality for the Fréchet subdifferential of a continuous function. This mean value inequality finds an intermediate point and localizes its value both from above and from below; for this reason ...
Dmitry V. Khlopin
doaj   +1 more source

Subdifferential Calculus Using ϵ-Subdifferentials

open access: yesJournal of Functional Analysis, 1993
AbstractIn applications of convex analysis it is important to be able to calculate the subdifferentials of various combinations of (proper and lower semicontinuous) convex functions, such as the sum of two such functions, or their inf-convolution ("epi-sum"), as well as the pre-composition of a convex function with an affine map or the "marginal ...
Hiriarturruty, J.B., Phelps, R.R.
openaire   +1 more source

Optimality Conditions and Dualities for Robust Efficient Solutions of Uncertain Set-Valued Optimization with Set-Order Relations

open access: yesAxioms, 2022
In this paper, we introduce a second-order strong subdifferential of set-valued maps, and discuss some properties, such as convexity, sum rule and so on.
Yuwen Zhai, Qilin Wang, Tian Tang
doaj   +1 more source

Sufficient Optimality and Sensitivity Analysis of a Parameterized Min-Max Programming

open access: yesJournal of Applied Mathematics, 2012
Sufficient optimality and sensitivity of a parameterized min-max programming with fixed feasible set are analyzed. Based on Clarke's subdifferential and Chaney's second-order directional derivative, sufficient optimality of the parameterized min-max ...
Huijuan Xiong, Yu Xiao, Chaohong Song
doaj   +1 more source

Efficient Automatic Subdifferentiation for Programs with Linear Branches

open access: yesMathematics, 2023
Computing an element of the Clarke subdifferential of a function represented by a program is an important problem in modern non-smooth optimization.
Sejun Park
doaj   +1 more source

Restricted Limiting Subdifferential and Applications

open access: yes, 2018
International audienceThe aim of this note is to introduce a subdifferential in the spirit of the limiting Fréchet subdifferential. Chain rules are established and several properties are given.
Abderrahim Jourani   +3 more
core   +1 more source

Directed Subdifferentiable Functions and the Directed Subdifferential Without Delta-Convex Structure [PDF]

open access: yesJournal of Optimization Theory and Applications, 2013
We show that the directed subdifferential introduced for differences of convex (delta-convex, DC) functions by Baier and Farkhi can be constructed from the directional derivative without using any information on the DC structure of the function.
Robert Baier   +2 more
openaire   +2 more sources

Some notes on weak subdifferential

open access: yes, 2017
Some necessary conditions for having nonempty weak subdifferential of a function are presented and the positively homogeneous of the weak subdifferential operator is proved. Necessary and sufficient conditions for achieving a global minimum of a
Ali Farajzadeh   +2 more
core   +1 more source

On Computing the Mordukhovich Subdifferential Using Directed Sets in Two Dimensions [PDF]

open access: yes, 2010
The Mordukhovich subdifferential is highly important in the variational and non-smooth analysis and optimization, but it may often be hard to calculate it. Here we propose a method of computing the Mordukhovich subdifferential of differences of sublinear
Elza Farkhi   +5 more
core   +1 more source

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