Results 81 to 90 of about 2,024 (222)

Multivalued Usco Functions and Stegall Spaces

open access: yesRevista de Ciencias, 2018
In this article we consider the study of the -differentiability and -ifferentiability for convex functions, not only in the general context of topological vector spaces (), but also in the context of Banach spaces.
Diana Ximena Narváez
doaj   +1 more source

Subdifferential characterization of s -lower regular functions

open access: yes, 2014
International audienceAs for Moreau envelopes of primal lower nice as well as prox-regular functions, Moreau s-envelopes of s-lower regular functions have been proved recently to have several remarkable differential properties and to have many important ...
I. Kecis   +3 more
core   +1 more source

OPTIMIZATION OF DIFFERENTIAL INCLUSIONS OF PARABOLIC TYPE

open access: yesElectrica, 2003
Sufficient conditions for optimality are derived for the problems under consideration on the basis of the apparatues of locally conjugate mappings.  
E. N. MAHMUDOV
doaj   +2 more sources

On a time-dependent subdifferential evolution inclusion with a nonconvex upper-semicontinuous perturbation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2005
We investigate the existence of local approximate and strong solutions for a time-dependent subdifferential evolution inclusion with a nonconvex upper-semicontinuous perturbation.
S. Guillaume, A. Syam
doaj   +1 more source

Calculating the proximal subdifferential via the quasidifferential

open access: yes, 2008
The relation between the proximal subdifferential and the quasidifferential for a function, which is B-differentiable (uniformly directionally differentiable) and quasidifferentiable (in the sense of Demyanov and Rubinov), is developed.
Gao, Yan
core   +1 more source

A THEOREM ON THE SUBDIFFERENTIAL CALCULATION

open access: yesDemonstratio Mathematica, 1988
Let X, Y be Banach spaces, \(a\in Y\), \(\Lambda\in {\mathcal L}(X,Y)\), Im \(\Lambda\) closed in Y. Let F: \(Y\to \bar R\) be a proper convex function. If F is continuous in at least one point of Im \(\Lambda\) \(+a\), and \(G(x)=F(\Lambda x+a)\), then we prove that \(\partial G(x)=\Lambda^*F(\Lambda x+a)\), where \(\Lambda^*\) is the conjugate of ...
openaire   +1 more source

A new tour on the subdifferential of the Supremum function

open access: yes, 2023
This chapter is a survey presenting various characterizations of the subdifferential of the pointwise supremum of convex functions, as well as some featured applications.
López, Marco, Hantoute, Abderrahim
core   +1 more source

Almost periodic solutions of differential inclusions governed by subdifferentials

open access: yesElectronic Journal of Differential Equations, 2016
Sufficient conditions are given to ensure the existence and eventually the uniqueness of bounded and almost periodic solutions of evolution equations governed by subdifferential operators.
Karim El Mufti
doaj  

Topological Properties of the Approximate Subdifferential

open access: yes, 1997
The approximate subdifferential introduced by Mordukhovich has attracted much attention in recent works on nonsmooth optimization. Potential advantages over other concepts of subdifferentiability might be related to its nonconvexity.
Henrion, René
core   +1 more source

Weak subdifferential/superdifferential, weak exhausters and optimality conditions

open access: yes, 2015
WOS: 000360382200001In this work, the notion of weak superdifferential is presented. Some calculation rules are given to evaluate weak subdifferential and weak superdifferential of some classes of functions represented by support functions.
Urbanski, Ryszard   +6 more
core   +2 more sources

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