Results 21 to 30 of about 1,961 (190)

Pullback D-Attractor of Coupled Rod Equations with Nonlinear Moving Heat Source

open access: yesJournal of Applied Mathematics, 2014
We consider the pullback D-attractor for the nonautonomous nonlinear equations of thermoelastic coupled rod with a nonlinear moving heat source. By Galerkin method, the existence and uniqueness of global solutions are proved under homogeneous boundary ...
Danxia Wang, Jianwen Zhang, Yinzhu Wang
doaj   +1 more source

Pullback attraction in H 0 1 $H_{0}^{1}$ for semilinear heat equation in expanding domains

open access: yesBoundary Value Problems, 2020
In this article, we consider the pullback attraction in H 0 1 $H_{0}^{1}$ of pullback attractor for semilinear heat equation with domains expanding in time. Firstly, we establish higher-order integrability of difference about variational solutions; then,
Yanping Xiao, Yuqin Bai, Huanhuan Zhang
doaj   +1 more source

Weak pullback attractors of setvalued processes

open access: yesJournal of Mathematical Analysis and Applications, 2003
Weak pullback attractors are de ned for nonautonomous setvalued processes and their existence and upper semi continuous convergence under perturbation is established. Unlike strong pullback attractors, invariance and pullback attraction here are required only for at least one trajectory rather than all trajectories at each starting point.
Caraballo Garrido, Tomás   +2 more
openaire   +4 more sources

Pullback attractors for the non-autonomous complex Ginzburg–Landau type equation with p-Laplacian

open access: yesNonlinear Analysis, 2015
In this paper, we are concerned with the long-time behavior of the non-autonomous complex Ginzburg–Landau type equation with p-Laplacian. We first prove the existence of pullback absorbing sets in L2(Ω)∩W01,p(Ω)∩Lq(Ω) for the process {U(t,τ)}t⩾τ ...
Fang Li, Bo You
doaj   +1 more source

Regularity and structure of pullback attractors for reaction-diffusion type systems without uniqueness [PDF]

open access: yes, 2016
In this paper, we study the pullback attractor for a general reaction-diffusion system for which the uniqueness of solutions is not assumed. We first establish some general results for a multi-valued dynamical system to have a bi-spatial pullback ...
Cui, Hongyong   +2 more
core   +1 more source

On the Dimension of the Pullback Attractors for g-Navier-Stokes Equations

open access: yesDiscrete Dynamics in Nature and Society, 2010
We consider the asymptotic behaviour of nonautonomous 2D g-Navier-Stokes equations in bounded domain Ω. Assuming that f∈Lloc2, which is translation bounded, the existence of the pullback attractor is proved in L2(Ω) and H1(Ω).
Delin Wu
doaj   +1 more source

Attractors for processes on time-dependent spaces. Applications to wave equations [PDF]

open access: yes, 2012
For a process U(t,s) acting on a one-parameter family of normed spaces, we present a notion of time-dependent attractor based only on the minimality with respect to the pullback attraction property. Such an attractor is shown to be invariant whenever the
Conti, Monica   +2 more
core   +1 more source

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

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

Minimality properties of set-valued processes and their pullback attractors [PDF]

open access: yes, 2014
We discuss the existence of pullback attractors for multivalued dynamical systems on metric spaces. Such attractors are shown to exist without any assumptions in terms of continuity of the solution maps, based only on minimality properties with respect ...
Michele Coti, Piotr Kalita, Zelati
core   +1 more source

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