Results 11 to 20 of about 12,144 (227)

Upper Semicontinuity of Attractors and Synchronization

open access: bronzeJournal of Mathematical Analysis and Applications, 1998
AbstractIn this paper we prove that diffusively coupled abstract semilinear parabolic systems synchronize. We apply the abstract results obtained to a class of ordinary differential equations and to reaction diffusion problems. The technique consists of proving that the attractors for the coupled differential equations are upper semicontinuous with ...
Alexandre N. Carvalho   +2 more
openaire   +3 more sources

Amount of failure of upper-semicontinuity of entropy in noncompact rank one situations, and Hausdorff dimension [PDF]

open access: green, 2012
Recently, Einsiedler and the authors provided a bound in terms of escape of mass for the amount by which upper-semicontinuity for metric entropy fails for diagonal flows on homogeneous spaces $\Gamma\backslash G$, where $G$ is any connected semisimple ...
Shirali Kadyrov, Anke Pohl
openalex   +6 more sources

Subharmonicity without Upper Semicontinuity

open access: bronzeJournal of Functional Analysis, 1997
AbstractLetΩbe an open subset ofRd(d⩾2). Givenx∈Ω, a Jensenmeasureforxis a Borel probability measureμ, supported on a compact subset ofΩ, such that each subharmonic functionuonΩsatisfiesu(x)⩽∫udμ. ((*))A functionuonΩ(subject to certain measurability conditions, much weaker for example than upper semicontinuity) is calledquasi-subharmonicif it satisfies
Brian J. Cole, Thomas Ransford
openaire   +3 more sources

Stieltjes Differential Inclusions with Periodic Boundary Conditions without Upper Semicontinuity [PDF]

open access: goldMathematics, 2021
We are studying first order differential inclusions with periodic boundary conditions where the Stieltjes derivative with respect to a left-continuous non-decreasing function replaces the classical derivative.
Valeria Marraffa, Bianca Satco
doaj   +2 more sources

Upper semicontinuity of uniform attractors for nonclassical diffusion equations [PDF]

open access: goldBoundary Value Problems, 2017
We study the upper semicontinuity of a uniform attractor for a nonautonomous nonclassical diffusion equation with critical nonlinearity. In particular, we prove that the uniform (with respect to (w.r.t.) g ∈ Σ $g\in \Sigma $ ) attractor A Σ ε $\mathcal ...
Yonghai Wang, Pengrui Li, Yuming Qin
doaj   +2 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

Monotonicity and upper semicontinuity [PDF]

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

A simple characterization of the existence of upper semicontinuous order-preserving functions [PDF]

open access: yes, 2023
We introduce an upper semicontinuity condition concerning a not necessarily total preorder on a topological space, namely strong upper semicontinuity, and in this way we extend to the nontotal case the famous Rader’s theorem,which guarantees the ...
Gianni Bosi, Laura Franzoi
core   +1 more source

Continuity of the fenchel correspondence and continuity of polarities [PDF]

open access: yes, 1991
The polar cone of the limit inferior of a sequence of cones of a Banach space is shown to be the Cesari's limit superior of the sequence of polar cones in the bounded weak∗ topology.
Contesse, L, Penot, J.-P
core   +1 more source

Upper Semicontinuity of Solution Maps for a Parametric Weak Vector Variational Inequality

open access: yesJournal of Inequalities and Applications, 2010
This paper investigates the upper semicontinuity of the solution map for a parametric weak vector variational inequality associated to a v-hemicontinuous and weakly C-pseudomonotone operator.
Z. M. Fang, S. J. Li
doaj   +2 more sources

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