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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

We study the long-time dynamics of a bulk-surface convective Cahn--Hilliard system describing phase separation processes with bulk-surface interaction. The presence of convection terms leads to a non-autonomous dynamical system and prevents…

Analysis of PDEs · Mathematics 2026-03-12 Patrik Knopf , Andrea Poiatti , Jonas Stange , Sema Yayla

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

Patterns and waves are basic and important phenomena that govern the dynamics of physical and biological systems. A common theme in investigating such systems is to identify the intrinsic factors responsible for such self-organization. The…

Analysis of PDEs · Mathematics 2018-06-25 Chao-Nien Chen , Y. S. Choi , Nicola Fusco

In this paper we consider a $2m$-th order non autonomous quasilinear parabolic equation. Under suitable conditions of growth and regularity for the nonlinear functions present in the model, we prove a result of existence and…

Analysis of PDEs · Mathematics 2025-07-29 Flank D. M. Bezerra , Silvia Sastre-Gómez

In this paper, we are interested in the relation between the solutions of the control system $\dot x=f(x,u)$ and the solutions of its (potentially unknown) perturbation $\dot x=f(x,u)+w(x,t).$ Under the assumption that the linear part of…

Optimization and Control · Mathematics 2018-12-21 Robert Vrabel

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

We analyze the asymptotic dynamics of quasilinear parabolic equations when solutions may grow up (i.e., blow up in infinite time). For such models, there is a global attractor which is unbounded and the semiflow induces a nonlinear dynamics…

Dynamical Systems · Mathematics 2023-12-20 Phillipo Lappicy , Juliana Fernandes Pimentel

In this work, we analyze the asymptotic behavior of the attractors associated with a semilinear parabolic equation subject to homogeneous Neumann boundary conditions and defined on a thin domain $R^\varepsilon \subset \mathbb{R}^{1+n}$. We…

Analysis of PDEs · Mathematics 2026-02-26 Elaine A. Tavares-Lima , Bianca Lorenzi , Marcone C. Pereira

In this paper we establish the existence and uniqueness of global solutions (in time), as well as the existence, regularity and stability (upper semicontinuity) of the attractor for the semigroup generated by the solutions of a…

Dynamical Systems · Mathematics 2024-02-14 Manoel J. Dos Santos , Renato F. C. Lobato

This work studies the stabilization for a periodic parabolic system under perturbations in the system conductivity. A perturbed system does not have any periodic solution in general. However, we will prove that the perturbed system can…

Optimization and Control · Mathematics 2009-02-26 Ling Lei

We investigate the following repulsion-consumption system with flux limitation \begin{align}\tag{$\star$} \left\{ \begin{array}{ll} u_t=\Delta u+\nabla \cdot(uf(|\nabla v|^2) \nabla v), & x \in \Omega, t>0, \tau v_t=\Delta v-u v, & x \in…

Analysis of PDEs · Mathematics 2024-09-10 Ziyue Zeng , Yuxiang Li

The article is devoted to the study of non-autonomous Navier-Stokes equations. First, the authors have proved that such systems admit compact global attractors. This problem is formulated and solved in the terms of general non-autonomous…

Dynamical Systems · Mathematics 2009-11-10 David Cheban , Jinqiao Duan

In this paper, we study the long-time dynamics of 3D non-autonomous Navier-Stokes-Voigt(NSV) equations with delay. Inspired by [36], we use the contractive function method to prove the pullback D-asymptotical compactness and existence of…

Analysis of PDEs · Mathematics 2024-02-28 Yuming Qin , Huite Jiang

This article addresses the issue of uniform measure attractors for non-autonomous McKean-Vlasov stochastic reaction-diffusion equations defined on unbounded thin domains. Initially, the concept of uniform measure attractors is recalled, and…

Probability · Mathematics 2024-12-30 Tianhao Zeng , Ran Li , Dingshi Li

In dissipative dynamical systems phase space volumes contract, on average. Therefore, the invariant measure on the attractor is singular with respect to the Lebesgue measure. As noted by Ruelle, a generic perturbation pushes the state out…

Statistical Mechanics · Physics 2012-11-28 Matteo Colangeli , Lamberto Rondoni , Angelo Vulpiani

Here we consider the nonlocal Cahn-Hilliard equation with constant mobility in a bounded domain. We prove that the associated dynamical system has an exponential attractor, provided that the potential is regular. In order to do that a…

Analysis of PDEs · Mathematics 2013-05-07 Ciprian G. Gal , Maurizio Grasselli

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

In this paper, we study the observability of compactly perturbed infinite dimensional systems. Assuming that a given infinite-dimensional system with self-adjoint generator is exactly observable we derive sufficient conditions on a compact…

Analysis of PDEs · Mathematics 2026-01-01 Nisrine Charaf , Faouzi Triki

We consider a phase-field model where the internal energy depends on the order parameter in a nonlocal way. Therefore, the resulting system consists of the energy balance equation coupled with a nonlinear and nonlocal ODE for the order…

Analysis of PDEs · Mathematics 2011-10-27 Maurizio Grasselli , Giulio Schimperna