Results 1 to 10 of about 754,834 (272)

Sufficient and necessary criteria for existence of pullback attractors for non-compact random dynamical systems [PDF]

open access: greenJournal of Differential Equations, 2012
We study pullback attractors of non-autonomous non-compact dynamical systems generated by differential equations with non-autonomous deterministic as well as stochastic forcing terms.
Bixiang Wang
exaly   +6 more sources

Pullback attractors for non-autonomous 2D-Navier–Stokes equations in some unbounded domains [PDF]

open access: greenComptes Rendus Mathematique, 2006
In this Note we first introduce the concept of pullback asymptotic compactness. Next, we establish a result ensuring the existence of a pullback attractor for a non-autonomous dynamical system under the general assumptions of pullback asymptotic ...
Tomás Caraballo, Grzegorz ŁUkaszewicz
exaly   +6 more sources

The Existence of Weak D-Pullback Exponential Attractor for Nonautonomous Dynamical System [PDF]

open access: goldThe Scientific World Journal, 2016
First, for a process U(t,τ)∣t≥τ, we introduce a new concept, called the weak D-pullback exponential attractor, which is a family of sets M(t)∣t≤T, for any T∈R, satisfying the following: (i) M(t) is compact, (ii) M(t) is positively invariant, that is, U(t,
Yongjun Li, Xiaona Wei, Yanhong Zhang
doaj   +4 more sources

Pullback attractors for asymptotically compact non-autonomous dynamical systems [PDF]

open access: greenNonlinear Analysis: Theory, Methods & Applications, 2006
First, we introduce the concept of pullback asymptotically compact non-autonomous dynamical system as an extension of the similar concept in the autonomous framework.
Tomás Caraballo
exaly   +5 more sources

Pullback attractor for a nonautonomous parabolic Cahn-Hilliard phase-field system

open access: yesAIMS Mathematics, 2023
Our aim in this paper is to study generalizations of the Caginalp phase-field system based on a thermomechanical theory involving two temperatures and a nonlinear coupling. In particular, we prove well-posedness results.
Jean De Dieu Mangoubi   +2 more
doaj   +2 more sources

Pullback attractor for a nonlocal discrete nonlinear Schrödinger equation with delays

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
We consider a nonlocal discrete nonlinear Schrödinger equation with delays. We prove that the process associated with the non-autonomous model possesses a pullback attractor.
Jardel Pereira
doaj   +2 more sources

Entropy Increase in Switching Systems [PDF]

open access: yesEntropy, 2013
The relation between the complexity of a time-switched dynamics and the complexity of its control sequence depends critically on the concept of a non-autonomous pullback attractor.
Ángel Giménez   +2 more
doaj   +3 more sources

Random pullback attractor of a non-autonomous local modified stochastic Swift–Hohenberg equation with multiplicative noise [PDF]

open access: hybrid, 2020
In this paper, we study the existence of the random D-pullback attractor of a non-autonomous local modified stochastic Swift–Hohenberg equation with multiplicative noise in the Stratonovich sense.
Yongjun Li, Hongqing Wu, Tinggang Zhao
openalex   +2 more sources

Pullback attractor of a non-autonomous order-2γ parabolic equation for an epitaxial thin film growth model

open access: yesBoundary Value Problems, 2020
The non-autonomous order-2γ parabolic partial differential equation for an epitaxial thin film growth model with dimension d = 3 $d=3$ is investigated by the method of uniform estimates.
Xiaojie Yang, Hui Liu, Chengfeng Sun
doaj   +2 more sources

Upper Semicontinuity of Pullback Attractors for the 3D Nonautonomous Benjamin-Bona-Mahony Equations [PDF]

open access: yesThe Scientific World Journal, 2014
We will study the upper semicontinuity of pullback attractors for the 3D nonautonomouss Benjamin-Bona-Mahony equations with external force perturbation terms. Under some regular assumptions, we can prove the pullback attractors 𝒜ε(t) of equation ut-Δut-
Xinguang Yang   +3 more
doaj   +2 more sources

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