Results 51 to 60 of about 754,834 (272)

Pullback Attractor for Nonautonomous Primitive Equations of Large-Scale Ocean and Atmosphere Dynamics

open access: yesAbstract and Applied Analysis, 2013
We consider the existence of -pullback attractor for nonautonomous primitive equations of large-scale ocean and atmosphere dynamics in a three-dimensional bounded cylindrical domain by verifying pullback condition.
Kun Li, Fang Li
doaj   +1 more source

Pullback attractor of Hopfield neural networks with multiple time-varying delays

open access: yesAIMS Mathematics, 2021
This paper deals with the attractor problem of Hopfield neural networks with multiple time-varying delays. The mathematical expression of the networks cannot be expressed in the vector-matrix form due to the existence of the multiple delays, which leads ...
Qinghua Zhou   +3 more
doaj   +1 more source

Random attractors for stochastic 2D-Navier-Stokes equations in some unbounded domains [PDF]

open access: yes, 2013
We show that the stochastic flow generated by the Stochastic Navier-Stokes equations in a 2-dimensional Poincar\'e domain has a unique random attractor.
Brzeźniak, Z.   +5 more
core   +2 more sources

Pullback and forward attractors of contractive difference equations

open access: yesInternational Journal of Dynamical Systems and Differential Equations, 2021
The construction of attractors of a dissipative difference equation is usually based on compactness assumptions. In this paper, we replace them with contractivity assumptions under which the pullback and forward attractors are identical. As a consequence, attractors degenerate to unique bounded entire solutions.
Huy Huynh, Abdullah Kalkan
openaire   +3 more sources

Pullback attractors of nonautonomous reaction–diffusion equations

open access: bronzeJournal of Mathematical Analysis and Applications, 2006
AbstractIn this paper, firstly we introduce the concept of norm-to-weak continuous cocycle in Banach space and give a technical method to verify this kind of continuity, then we obtain some abstract results for the existence of pullback attractors about this kind of cocycle, using the measure of noncompactness. As an application, we prove the existence
Haitao Song, Hongqing Wu
openalex   +3 more sources

Backwards Asymptotically Autonomous Dynamics for 2D MHD Equations

open access: yesDiscrete Dynamics in Nature and Society, 2018
We consider the backwards topological property of pullback attractors for the nonautonomous MHD equations. Under some backwards assumptions of the nonautonomous force, it is shown that the theoretical existence result for such an attractor is derived ...
Jiali Yu, Wenhuo Su, Dongmei Xu
doaj   +1 more source

Parameter shifts for nonautonomous systems in low dimension: Bifurcation- and Rate-induced tipping [PDF]

open access: yes, 2016
We discuss the nonlinear phenomena of irreversible tipping for non-autonomous systems where time-varying inputs correspond to a smooth "parameter shift" from one asymptotic value to another.
Ashwin, Peter   +2 more
core   +2 more sources

Asymptotic behavior of non-autonomous fractional p-Laplacian equations driven by additive noise on unbounded domains

open access: yesBulletin of Mathematical Sciences, 2021
This paper deals with the asymptotic behavior of solutions to non-autonomous, fractional, stochastic p-Laplacian equations driven by additive white noise and random terms defined on the unbounded domain ℝN.
Renhai Wang, Bixiang Wang
doaj   +1 more source

Asymptotic behaviour of the non-autonomous 3D Navier-Stokes problem with coercive force [PDF]

open access: yes, 2010
We construct pullback attractors to the weak solutions of the three-dimensional Dirichlet problem for the incompressible Navier-Stokes equations in the case when the external force may become unbounded as time goes to plus or minus infinity.Comment: 22 ...
Vorotnikov, Dmitry
core   +2 more sources

Time-Dependent Attractor for the Oscillon Equation [PDF]

open access: yes, 2010
We investigate the asymptotic behavior of the nonautonomous evolution problem generated by the Klein-Gordon equation in an expanding background, in one space dimension with periodic boundary conditions, with a nonlinear potential of arbitrary polynomial ...
Di Plinio, Francesco   +2 more
core   +1 more source

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