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We study the long time behavior of solutions of the non-autonomous Reaction-Diffusion equation defined on the entire space R^n when external terms are unbounded in a phase space. The existence of a pullback global attractor for the equation…

Analysis of PDEs · Mathematics 2009-03-31 Bixiang Wang

We analyze the dynamics of the flow generated by a nonlinear parabolic problem when some reaction and potential terms are concentrated in a neighborhood of the boundary. We assume that this neighborhood shrinks to the boundary as a…

Analysis of PDEs · Mathematics 2012-04-03 Gleiciane S. Aragão , Antônio L. Pereira , Marcone C. Pereira

This paper is concerned with pullback dynamics of 3D Navier-Stokes equations with variable viscosity and subject to time-dependent external forces. Our main result establishes the existence of finite-dimensional pullback attractors in a…

Dynamical Systems · Mathematics 2019-01-23 Xin-Guang Yang , Baowei Feng , Shubin Wang , To Fu Ma , Yongjin Lu

The aim of this paper is to study the robustness of the family of pullback attractors associated to a non-autonomous coupled system of strongly damped wave equations, given by the following evolution system $$\left\{ \begin{array}{lr}…

Dynamical Systems · Mathematics 2023-12-12 Everaldo M. Bonotto , Alexandre N. Carvalho , Marcelo J. D. Nascimento , Eric B. Santiago

This work is devoted to the study of the asymptotic behavior of nonautonomous reaction-diffusion equations in Dumbbell domains $\Omega_{\varepsilon} \subset \mathbb{R}^{N}$. Each $\Omega_{\varepsilon}$ is the union of a fixed open set…

Analysis of PDEs · Mathematics 2020-12-15 Maykel Belluzi , Tomás Caraballo , Marcelo J. D. Nascimento , Karina Schiabel

For pullback attractors of asymptotically autonomous dynamical systems we study the convergences of their components towards the global attractors of the limiting semigroups. We use some conditions of uniform boundedness of pullback…

Dynamical Systems · Mathematics 2017-11-27 Hongyong Cui

In this work we obtain theoretical results on continuity of selected pullback attractors and we apply them to reaction diffusion equations with dynamical boundary conditions

Analysis of PDEs · Mathematics 2020-04-28 Rodrigo Antonio Samprogna , Jacson Simsen

We consider a family of non-autonomous reaction-diffusion equations with almost periodic, rapidly oscillating principal part and nonlinear interactions. As the frequency of the oscillations tends to infinity, we prove that the solutions of…

Analysis of PDEs · Mathematics 2007-05-23 F. Antoci , M. Prizzi

We prove the existence and uniqueness of tempered random attractors for stochastic Reaction-Diffusion equations on unbounded domains with multiplicative noise and deterministic non-autonomous forcing. We establish the periodicity of the…

Analysis of PDEs · Mathematics 2012-05-22 Bixiang Wang

In this paper, we prove the existence of weak pullback mean random attractors for a non-local stochastic reaction-diffusion equation with a nonlinear multiplicative noise. Also, we establish the existence and uniqueness of solutions and…

Analysis of PDEs · Mathematics 2026-03-02 Rubén Caballero , Pedro Marín-Rubio , José Valero

In this paper, we study the asymptotic behavior of the solutions of a nonautonomous differential inclusion modeling a reaction-diffusion equation with a discontinuous nonlinearity. We obtain first several properties concerning the…

Analysis of PDEs · Mathematics 2024-05-06 José Valero

Under consideration is the hyperbolic relaxation of a semilinear reaction-diffusion equation on a bounded domain, subject to a dynamic boundary condition. We also consider the limit parabolic problem with the same dynamic boundary…

Dynamical Systems · Mathematics 2013-04-19 Ciprian G. Gal , Joseph L. Shomberg

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. We first introduce the concepts of pullback attractors…

Analysis of PDEs · Mathematics 2012-04-24 Bixiang Wang

The aim of this work is to examine the upper-semicontinuity properties of the family of global attractors admitted by a non-isothermal viscous relaxation of some nonlocal Cahn-Hilliard equations. We prove that the family of global…

Analysis of PDEs · Mathematics 2018-05-17 Joseph L. Shomberg

In this paper, we study the upper semicontinuity of pullback attractors for a strongly damped wave equation. In particular, under some proper assumptions, we prove that, the pullback attractor $\{A_\varepsilon(t)\}_{t\in\mathbb R}$} of…

Dynamical Systems · Mathematics 2015-12-14 Yonghai Wang , Chengkui Zhong

In this paper we study a nonlocal reaction-diffusion equation in which the diffusion depends on the gradient of the solution. We prove first the existence and uniqueness of regular and strong solutions. Second, we obtain the existence of…

Dynamical Systems · Mathematics 2026-02-27 Rubén Caballero , Pedro Marín-Rubio , José Valero

In this paper we study the asymptotic nonlinear dynamics of scalar semilinear parabolic problems reaction-diffusion type when the diffusion coefficient becomes large in a subregion which is interior to the domain. We obtain, under suitable…

Analysis of PDEs · Mathematics 2024-05-28 Leonardo Pires , Alexandre Nolasco de Carvalho

This paper is devoted to the study of nonautonomous multivalued semiflows and their associated pullback attractors. For this kind of dynamical systems we are able to characterize the upper and lower bounds of the attractor as complete…

Dynamical Systems · Mathematics 2024-07-04 José A. Langa , Jacson Simsen , Mariza Stefanello Simsen , José Valero

This paper is concerned with pullback attractors of the stochastic p-Laplace equation defined on the entire space R^n. We first establish the asymptotic compactness of the equation in L^2(R^n) and then prove the existence and uniqueness of…

Analysis of PDEs · Mathematics 2014-09-30 Andrew Krause , Bixiang Wang

A reaction-diffusion equation on a family of three dimensional thin domains, collapsing onto a two dimensional subspace, is considered. In \cite{\rfa pr..} it was proved that, as the thickness of the domains tends to zero, the solutions of…

Analysis of PDEs · Mathematics 2007-05-23 T. Elsken , M. Prizzi
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