Results 91 to 100 of about 503 (210)

Invariant manifolds as pullback attractors of nonautonomous differential equations

open access: yesDiscrete and Continuous Dynamical Systems, 2005
We discuss the relationship between invariant manifolds of nonautonomous differential equations and pullback attractors. This relationship is essential, e.g., for the numerical approximation of these manifolds. In the first step, we show that the unstable manifold is the pullback attractor of the differential equation.
Aulbach, Bernd   +2 more
openaire   +2 more sources

Random attractors for stochastic lattice reversible Gray-Scott systems with additive noise

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we prove the existence of a random attractor of the stochastic three-component reversible Gray-Scott system on infinite lattice with additive noise.
Hongyan Li, Junyi Tu
doaj  

Global Mild Solutions and Attractors for Stochastic Viscous Cahn-Hilliard Equation

open access: yesAbstract and Applied Analysis, 2011
This paper is devoted to the study of mild solutions for the initial and boundary value problem of stochastic viscous Cahn-Hilliard equation driven by white noise. Under reasonable assumptions we first prove the existence and uniqueness result.
Xuewei Ju   +3 more
doaj   +1 more source

Upper Semicontinuity of Random Attractors for Nonautonomous Stochastic Reversible Selkov System with Multiplicative Noise

open access: yesAdvances in Mathematical Physics, 2019
In this paper, the existence of random attractors for nonautonomous stochastic reversible Selkov system with multiplicative noise has been proved through Ornstein-Uhlenbeck transformation.
Chunxiao Guo, Yanfeng Guo, Xiaohan Li
doaj   +1 more source

Pullback attractors of nonautonomous dynamical systems

open access: yesDiscrete and Continuous Dynamical Systems, 2006
We present the necessary and sufficient conditions and a new method to study the existence of pullback attractors of nonautonomous infinite dimensional dynamical systems. For illustrating our method, we apply it to nonautonomous 2D Navier-Stokes systems.
Yejuan Wang   +2 more
openaire   +2 more sources

Uniform boundedness of the attractor in $H^2$ of a non-autonomous epidemiological system [PDF]

open access: yes, 2018
In this paper, we prove the uniform boundedness of the pullback attractor of a non-autonomous SIR (susceptible, infected, recovered) model from epidemiology considered in Anguiano and Kloeden (2014). We prove two uniform bounds of this pullback attractor,
María Anguiano   +2 more
core   +1 more source

Pullback attractor analysis of a periodically forced QG model

open access: yes, 2013
The classical concept of attractor of an autonomous dissipative dynamical system can be generalized to the non-autonomous case by defining a time-dependent attractor in the pullback sense, the so-called pullback attractor (PBA).
PIERINI, Stefano
core  

Approximate Kelvin-Voigt Fluid Driven by an External Force Depending on Velocity with Distributed Delay

open access: yesDiscrete Dynamics in Nature and Society, 2015
We consider the approximate 3D Kelvin-Voigt fluid driven by an external force depending on velocity with distributed delay. We investigate the long time behavior of solutions to Navier-Stokes-Voigt equation with a distributed delay external force ...
Yantao Guo, Shuilin Cheng, Yanbin Tang
doaj   +1 more source

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