Results 11 to 20 of about 73,971 (227)

On upper semicontinuity of duality mappings [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1994
We give new sufficient conditions for a Banach space to be an Asplund (or reflexive) space in terms of certain upper semicontinuity of the duality mapping.
Manuel D. Contreras, Rafael Payá
openalex   +4 more sources

Weak upper semicontinuity of pullback attractors for nonautonomous reaction-diffusion equations

open access: diamondElectronic Journal of Qualitative Theory of Differential Equations, 2019
We consider nonautonomous reaction-diffusion equations with variable exponents and large diffusion and we prove continuity of the flow and weak upper semicontinuity of a family of pullback attractors when the exponents go to $2$ in $L^\infty(\Omega)$.
Jacson Simsen
doaj   +2 more sources

Upper semicontinuity of random attractors for non-compact random dynamical systems [PDF]

open access: yesElectronic Journal of Differential Equations, 2009
The upper semicontinuity of random attractors for non-compact random dynamical systems is proved when the union of all perturbed random attractors is precompact with probability one.
Bixiang Wang
doaj   +1 more source

Monotonicity and upper semicontinuity [PDF]

open access: goldBulletin of the American Mathematical Society, 1976
M. B. Suryanarayana
openalex   +4 more sources

On the upper semicontinuity of a quasiconcave functional [PDF]

open access: yesJournal of Functional Analysis, 2020
In the recent paper \cite{SER}, the second author proved a divergence-quasiconcavity inequality for the following functional $ \mathbb{D}(A)=\int_{\mathbb{T}^n} det(A(x))^{\frac{1}{n-1}}\,dx$ defined on the space of $p$-summable positive definite matrices with zero divergence. We prove that this implies the weak upper semicontinuity of the functional $\
De Rosa L., Serre D., Tione R.
openaire   +3 more sources

Existence of multiple solutions for a wide class of differential inclusions†

open access: yesMathematische Nachrichten, Volume 296, Issue 1, Page 152-163, January 2023., 2023
Abstract We give a unified approach to study the existence of multiple positive solutions of nonlinear differential inclusions of the form −u′′(t)∈F(t,u(t)),a.e.t∈(0,1),$$\begin{equation*}\hskip7pc -u^{\prime \prime }(t)\in F(t,u(t)),\; \text{a.e.} \; t \in (0,1), \end{equation*}$$subject to various nonlocal boundary conditions. We study these problems
Filomena Cianciaruso   +1 more
wiley   +1 more source

Upper semicontinuity of attractors for nonclassical diffusion equations with arbitrary polynomial growth

open access: yesAdvances in Difference Equations, 2021
In this paper, we mainly investigate upper semicontinuity and regularity of attractors for nonclassical diffusion equations with perturbed parameters ν and the nonlinear term f satisfying the polynomial growth of arbitrary order p − 1 $p-1$ ( p ≥ 2 $p ...
Yongqin Xie, Jun Li, Kaixuan Zhu
doaj   +1 more source

The stability of minimal solution sets for set optimization problems via improvement sets

open access: yesJournal of Inequalities and Applications, 2023
In this paper we investigate the stability of solution sets for set optimization problems via improvement sets. Some sufficient conditions for the upper semicontinuity, lower semicontinuity, and compactness of E-minimal solution mappings are given for ...
Taiyong Li, Yanhui Wei
doaj   +1 more source

Upper Semicontinuous Extensions of Binary Relations [PDF]

open access: yesSSRN Electronic Journal, 2002
Abstract Suzumura [Economica 43 (1976) 381] has shown that a binary relation has a weak order extension if and only if it is consistent. However, consistency is demonstrably not sufficient to extend an upper semicontinuous binary relation to an upper semicontinuous weak order.
Kotaro Suzumura   +3 more
openaire   +4 more sources

Semicontinuity and closedness of parametric generalized lexicographic quasiequilibrium problems

open access: yesJournal of Inequalities and Applications, 2016
This paper is mainly concerned with the upper semicontinuity, closedness, and the lower semicontinuity of the set-valued solution mapping for a parametric lexicographic equilibrium problem where both two constraint maps and the objective bifunction ...
Rabian Wangkeeree   +2 more
doaj   +1 more source

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