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The aim of this paper is studying the compact global attractors for non-autonomous lattice dynamical systems of the form $u_{i}'=\nu (u_{i-1}-2u_i+u_{i+1})-\lambda u_{i}+f(u_i)+f_{i}(t)\ (i\in \mathbb Z,\ \lambda >0)$. We prove their…

Dynamical Systems · Mathematics 2025-06-24 David Cheban , Andrei Sultan

We investigate the long-time behaviour of solutions of a class of singular-degenerate porous medium type equations in bounded domains with homogeneous Dirichlet boundary conditions. The existence of global attractors is shown under very…

Analysis of PDEs · Mathematics 2026-01-15 Zehra Şen , Stefanie Sonner

In this paper a family of non-autonomous scalar parabolic PDEs over a general compact and connected flow is considered. The existence or not of a neighbourhood of zero where the problems are linear has an influence on the methods used and…

Dynamical Systems · Mathematics 2021-03-22 Rafael Obaya , Ana Sanz

We consider Cauchy problem for the semilinear plate equation with nonlocal nonlinearity. Under mild conditions on the damping coefficient, we prove that the semigroup generated by this problem possesses a global attractor.

Analysis of PDEs · Mathematics 2015-04-01 Azer Khanmamedov , Sema Simsek

The purpose of this paper is to investigate the existence and Hausdorff dimension as well as fractal dimension of global attractors for a delayed reaction-diffusion equation on an unbounded domain. The noncompactness of the domain causes…

Analysis of PDEs · Mathematics 2023-11-17 Wenjie Hu , Tomás Caraballo , Alain Miranville

We study rigidity/flexibility properties of global solutions to the thin obstacle problem. For solutions with bounded positive sets, we give a classification in terms of their expansions at infinity. For solutions with bounded contact sets,…

Analysis of PDEs · Mathematics 2025-05-01 Xavier Fernández-Real , Hui Yu

We consider the Cahn-Hilliard equation on manifolds with conical singularities and prove existence of global attractors in higher order Mellin-Sobolev spaces with asymptotics. We also show convergence of solutions in the same spaces to an…

Analysis of PDEs · Mathematics 2024-03-22 Pedro T. P. Lopes , Nikolaos Roidos

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 global attractors for the damped 3D Euler--Bardina equations with the regularization parameter $\alpha>0$ and Ekman damping coefficient $\gamma>0$ endowed with periodic boundary conditions as well as their damped Euler limit…

Analysis of PDEs · Mathematics 2021-12-28 Alexei Ilyin , Anna Kostianko , Sergey Zelik

This note is focused on a novel technique in order to establish the boundedness in more regular spaces for global attractors of dissipative dynamical systems, without appealing to uniform-in-time estimates. As an application of the abstract…

Dynamical Systems · Mathematics 2009-01-26 Monica Conti , Vittorino Pata

The existence of a global attractor for wave equations in unbounded domains is a challenging problem due to the non-compactness of the Sobolev embeddings. To overcome this difficulty, some authors have worked with weighted Sobolev spaces…

Analysis of PDEs · Mathematics 2018-01-03 Djiby Fall , Yuncheng You

Under consideration is the damped semilinear wave equation \[ u_{tt}+u_t-\Delta u + u + f(u)=0 \] on a bounded domain $\Omega$ in $\mathbb{R}^3$ with a perturbation parameter $\varepsilon>0$ occurring in an acoustic boundary condition,…

Dynamical Systems · Mathematics 2018-04-17 Joseph L. Shomberg

In this paper, we proved that if the solution to damped focusing Klein-Gordon equations is global forward in time, then it will decouple into a finite number of equilibrium points with different shifts from the origin. The core ingredient…

Analysis of PDEs · Mathematics 2015-12-10 Ze Li , Lifeng Zhao

The dissipative wave equation with a critical quintic nonlinearity in smooth bounded three dimensional domain is considered. Based on the recent extension of the Strichartz estimates to the case of bounded domains, the existence of a…

Analysis of PDEs · Mathematics 2013-09-25 Varga Kalantarov , Anton Savostianov , Sergey Zelik

We study a coupled nonlinear evolution system arising from the Ginzburg-Landau theory for atomic Fermi gases near the BCS-BEC crossover. First, we prove that the initial boundary value problem generates a strongly continuous semigroup on a…

Analysis of PDEs · Mathematics 2015-05-20 Jie Jiang , Hao Wu , Boling Guo

This study investigates a semilinear wave equation characterized by nonlinear damping $g(u_t) $ and nonlinearity $f(u)$. First, the well-posedness of weak solutions across broader exponent ranges for $g$ and $f$ is established, by utilizing…

Analysis of PDEs · Mathematics 2025-02-14 Cuncai Liu , Fengjuan Meng , Xiaoying Han , Chang Zhang

We consider the global attractor of the critical SQG semigroup $S(t)$ on the scale-invariant space $H^1(\mathbb{T}^2)$. It was shown in~\cite{CTV13} that this attractor is finite dimensional, and that it attracts uniformly bounded sets in…

Analysis of PDEs · Mathematics 2016-02-17 Peter Constantin , Michele Coti Zelati , Vlad Vicol

We study the Euler equations with the so-called Ekman damping in the whole 2D space. The global well-posedness and dissipativity for the weak infinite energy solutions of this problem in the uniformly local spaces is verified based on the…

Analysis of PDEs · Mathematics 2015-09-30 Vladimir Chepyzhov , Sergey Zelik

In this paper we study the fractal dimension of global attractors for a class of wave equations with (single-point) degenerate nonlocal damping. Both the equation and its linearization degenerate into linear wave equations at the degenerate…

Analysis of PDEs · Mathematics 2023-10-30 Zhijun Tang , Senlin Yan , Yao Xu , Chengkui Zhong

Dissipative wave equations with critical quintic nonlinearity and damping term involving the fractional Laplacian are considered. The additional regularity of energy solutions is established by constructing the new Lyapunov-type functional…

Analysis of PDEs · Mathematics 2013-06-11 Anton Savostianov , Sergey Zelik