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In this work we define the generalized $\varphi$-pullback attractors for evolution processes in complete metric spaces, which are compact and positively invariant families, such that they pullback attract bounded sets with a rate determined…

Dynamical Systems · Mathematics 2023-11-28 Matheus C. Bortolan , Tomas Caraballo , Carlos Pecorari Neto

We give an abstract framework for studying nonautonomous PDEs, called a generalized evolutionary system. In this setting, we define the notion of a pullback attractor. Moreover, we show that the pullback attractor, in the weak sense, must…

Analysis of PDEs · Mathematics 2014-04-10 Alexey Cheskidov , Landon Kavlie

In this work we study nonuniform exponential dichotomies and existence of pullback and forward attractors for evolution processes associated to nonautonomous differential equations. We define a new concept of nonuniform exponential…

Dynamical Systems · Mathematics 2021-12-14 Jose Antonio Langa , Rafael Obaya , Alexandre N. Oliveira-Sousa

In [Adv. Math., 267(2014), 277-306], Cheskidov and Lu develop a new framework of the evolutionary system that deals directly with the notion of a uniform global attractor due to Haraux, and by which a trajectory attractor is able to be…

Dynamical Systems · Mathematics 2022-09-19 Songsong 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

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

In this paper we consider sufficient conditions for the existence of uniform compact global attractor for non-autonomous dynamical systems in special classes of infinite-dimensional phase spaces. The obtained generalizations allow us to…

Dynamical Systems · Mathematics 2016-09-06 Michael Zgurovsky , Mark Gluzman , Nataliia Gorban , Pavlo Kasyanov , Liliia Paliichuk , Olha Khomenko

We consider a model for the evolution of a mixture of two incompressible and partially immiscible Newtonian fluids in two dimensional bounded domain. More precisely, we address the well-known model H consisting of the Navier-Stokes equation…

Analysis of PDEs · Mathematics 2013-04-04 Stefano Bosia , Stefania Gatti

An abstract framework for studying the asymptotic behavior of a dissipative evolutionary system $\mathcal{E}$ with respect to weak and strong topologies was introduced in [8] primarily to study the long-time behavior of the 3D Navier-Stokes…

Dynamical Systems · Mathematics 2007-05-23 Alexey Cheskidov

We consider dynamical behavior of non-autonomous wave-type evolutionary equations with nonlinear damping, critical nonlinearity, and time-dependent external forcing which is translation bounded but not translation compact (i.e., external…

Dynamical Systems · Mathematics 2009-11-11 Chunyou Sun , Daomin Cao , Jinqiao Duan

We study the long-time behaviour of solutions to some classes of fourth-order nonlinear PDEs with non-monotone nonlinearities, which include the Landau--Lifshitz--Baryakhtar (LLBar) equation (with all relevant fields and spin torques) and…

Analysis of PDEs · Mathematics 2025-06-30 Beniamin Goldys , Agus L. Soenjaya , Thanh Tran

We show that for any fixed accuracy and time length $T$, a {\it finite} number of $T$-time length pieces of the complete trajectories on the global attractor are capable of uniformly approximating all trajectories within the accuracy in the…

Dynamical Systems · Mathematics 2023-05-09 Songsong Lu

We give a comprehensive study of strong uniform attractors of non-autonomous dissipative systems for the case where the external forces are not translation compact. We introduce several new classes of external forces which are not…

Analysis of PDEs · Mathematics 2014-04-23 Sergey Zelik

In this paper, we first establish a criterion based on contractive function for the existence of polynomial attractors. This criterion only involves some rather weak compactness associated with the repeated limit inferior and requires no…

Analysis of PDEs · Mathematics 2021-12-28 Chunyan Zhao , Chengkui Zhong , Senlin Yan

In this paper, we mainly study the regularity of pullback $\mathcal{D}$-attractors for a nonautonomous nonclassical diffusion equation with delay term $b(t,u_t)$ which contains some hereditary characteristics. Under a critical nonlinearity…

Analysis of PDEs · Mathematics 2023-03-28 Yuming Qin , Qitao Cai , Ming Mei , Ke Wang

In this paper, we investigate the continuity of the attractors in time-dependent phase spaces. (i) We establish two abstract criteria on the upper semicontinuity and the residual continuity of the pullback $\mathscr D$-attractor with…

Analysis of PDEs · Mathematics 2022-01-11 Yanan Li , Zhijian Yang

The existence of a finite global attractor for polynomial curve system has been known since the work of Belk et al. [4]. However, except in the hyperbolic case, the rate at which the pullback of a curve under a polynomial converges to the…

Dynamical Systems · Mathematics 2026-05-29 Shuyi Wang , Gaofei Zhang

The authors consider non-autonomous dynamical behavior of wave-type evolutionary equations with nonlinear damping and critical nonlinearity. These type of waves equations are formulated as non-autonomous dynamical systems (namely,…

Dynamical Systems · Mathematics 2009-11-11 Chunyou Sun , Daomin Cao , Jinqiao Duan

We study the continuity of pullback and uniform attractors for non-autonomous dynamical systems with respect to perturbations of a parameter. Consider a family of dynamical systems parameterised by a complete metric space $\Lambda$ such…

Dynamical Systems · Mathematics 2017-02-28 Luan T. Hoang , Eric J. Olson , James C. Robinson

The wave equation with energy critical sources and nonlinear damping defined on a 3D bounded domain is considered. It is shown that the resulting dynamical system admits a global attractor. Under the additional assumption of strong…

Dynamical Systems · Mathematics 2025-11-07 Irena Lasiecka , Vando Narciso
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