Results 71 to 80 of about 1,961 (190)

Pullback attractors for nonclassical diffusion delay equations on unbounded domains with non-autonomous deterministic and stochastic forcing terms

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we prove the existence of pullback attractor in $C([-h,0];H^1(\mathbb{R}^N))$ for a stochastic nonclassical diffusion equations on unbounded domains with non-autonomous deterministic and stochastic forcing terms, and the pullback ...
Fang-Hong Zhang, Wei Han
doaj  

Criteria for strong and weak random attractors

open access: yes, 2008
The theory of random attractors has different notions of attraction, amongst them pullback attraction and weak attraction. We investigate necessary and sufficient conditions for the existence of pullback attractors as well as of weak ...
B. Schmalfuß   +19 more
core   +1 more source

Random Attractors of Stochastic Three-Component Reversible Gray-Scott System on Unbounded Domains

open access: yesAbstract and Applied Analysis, 2012
The existence of a pullback random attractor is established for a stochastic three-component reversible Gray-Scott system on unbounded domains. The Gray-Scott system is recast as a random dynamical system and asymptotic compactness which is illustrated ...
Anhui Gu
doaj   +1 more source

The Pullback Attractors for the Nonautonomous Camassa‐Holm Equations [PDF]

open access: yesMathematical Problems in Engineering, 2009
We consider the pullback attractors for the three‐dimensional nonautonomous Camassa‐Holm equations in the periodic box Ω = [0, L] 3. Assuming , which is translation bounded, the existence of the pullback attractor for the three‐dimensional nonautonomous Camassa‐Holm system is proved in D(A1/2) and D(A).
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

Rate-induced tipping and saddle-node bifurcation for quadratic differential equations with nonautonomous asymptotic dynamics [PDF]

open access: yes, 2020
An in-depth analysis of nonautonomous bifurcations of saddle-node type for scalar differential equations $x'=-x^2+q(t)\,x+p(t)$, where $q\colon\R\to\R$ and $p\colon\R\to\R$ are bounded and uniformly continuous, is fundamental to explain the absence ...
Longo, Iacopo Paolo   +3 more
core  

Invariant manifolds as pullback attractors of nonautonomous differential equations

open access: yesDiscrete & Continuous Dynamical Systems - A, 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

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 attractor for N-dimensional thermoelastic coupled structure equations

open access: yesBoundary Value Problems, 2018
In this paper, proving the pullback asymptotic compactness of processes by the aid of a contractive function in space X 0 $X_{0}$ , we prove the existence of a pullback attractor for N-dimensional nonautonomous thermoelastic coupled structure equations u
Danxia Wang, Yinzhu Wang
doaj   +1 more source

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