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We study the asymptotic behavior of solutions of discrete nonlinear Schr\"odinger-type (DNLS) equations. For a conservative system, we consider the global in time solvability and the question of existence of standing wave solutions.…

经典分析与常微分方程 · 数学 2007-05-23 Nikos I. Karachalios , Athanasios N. Yannacopoulos

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…

偏微分方程分析 · 数学 2023-11-17 Wenjie Hu , Tomás Caraballo , Alain Miranville

This article aims to study the long-time dynamics of the linear viscoelastic plate equation $\displaystyle{u_{tt}+\Delta^2 u-\int_{\tau}^tg(t-s)\Delta^2u(s)ds=0}$ subject to nonlinear and nonlocal boundary conditions. This model, with…

偏微分方程分析 · 数学 2026-01-13 Linfang Liu , Vando Narciso , Zhijian Yang

Master character of the multidimensional homogeneous Euler equation is discussed. It is shown that under restrictions to the lower dimensions certain subclasses of its solutions provide us with the solutions of various hydrodynamic type…

可精确求解与可积系统 · 物理学 2021-05-26 B. G. Konopelchenko , G. Ortenzi

We consider a nonlinear reaction-diffusion equation settled on the whole euclidean space. We prove the well-posedness of the corresponding Cauchy problem in a general functional setting, namely, when the initial datum is uniformly locally…

偏微分方程分析 · 数学 2009-10-20 Maurizio Grasselli , Dalibor Pražák , Giulio Schimperna

We establish short-time existence of solutions to the surface quasi-geostrophic equation in both the H\"{o}lder spaces $C^r(\mathbb{R}^2)$ for $r>1$ and the uniformly local Sobolev spaces $H^s_{ul}(\mathbb{R}^2)$ for $s\geq 3$. Using…

偏微分方程分析 · 数学 2022-06-14 David M. Ambrose , Elaine Cozzi , Daniel Erickson , James P. Kelliher

We study the global existence and uniform-in-time bounds of classical solutions in all dimensions to reaction-diffusion systems dissipating mass. By utilizing the duality method and the regularization of the heat operator, we show that if…

偏微分方程分析 · 数学 2019-05-28 Brian P. Cupps , Jeff Morgan , Bao Quoc Tang

In this paper, we study the strong global attractors for a three dimensional nonclassical diffusion equation with memory. First, we prove the existence and uniqueness of strong solutions for the equations by the Galerkin method. Then we…

偏微分方程分析 · 数学 2023-04-03 Yuming Qin , Xiaolei Dong , Alain Miranville , Ke Wang

In this paper we show that the long time dynamics (the global attractor) of the 2D Navier-Stokes equation is embedded in the long time dynamics of an ordinary differential equation, named {\it determining form}, in a space of trajectories…

动力系统 · 数学 2015-06-17 Ciprian Foias , Michael S. Jolly , Rostyslav Kravchenko , Edriss S. Titi

We investigate the equations of anisotropic incompressible viscous fluids in $\R^3$, rotating around an inhomogeneous vector $B(t, x_1, x_2)$. We prove the global existence of strong solutions in suitable anisotropic Sobolev spaces for…

偏微分方程分析 · 数学 2009-11-13 Mohamed Majdoub , Marius Paicu

We consider a certain simplification of the two-dimensional thermomicropolar fluids equations. We prove the existence of certain solutions to these equations depending on the regularity of the intial data. We investigate the uniqueness of…

偏微分方程分析 · 数学 2016-09-29 Łukaszewicz Grzegorz , Siemianowski Jakub

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…

动力系统 · 数学 2022-09-19 Songsong Lu

We give a detailed study of attractors for measure driven quintic damped wave equations with periodic boundary conditions. This includes uniform energy-to-Strichartz estimates, the existence of uniform attractors in a weak or strong…

偏微分方程分析 · 数学 2018-10-09 Anton Savostianov , Sergey Zelik

We study a dissipative system of nonlinear and nonlocal equations modeling the flow of electrohydrodynamics. The existence, uniqueness and regularity of solutions is proven for general $\mathbf{L}^2$ initial data in two space dimensions and…

偏微分方程分析 · 数学 2009-10-28 Rolf J. Ryham

We consider a hydrodynamic system that models the Smectic-A liquid crystal flow. The model consists of the Navier-Stokes equation for the fluid velocity coupled with a fourth-order equation for the layer variable $\vp$, endowed with…

偏微分方程分析 · 数学 2012-02-21 Antonio Segatti , Hao Wu

In this paper we obtain a detailed description of the global and cocycle attractors for the skew-product semiflows induced by the mild solutions of a family of scalar linear-dissipative parabolic problems over a minimal and uniquely ergodic…

动力系统 · 数学 2017-12-15 Tomas Caraballo , Jose antonio Lnaga , Rafael Obaya , Ana M. Sanz

Here we consider a Cahn-Hilliard-Navier-Stokes system characterized by a nonlocal Cahn-Hilliard equation with a singular (e.g., logarithmic) potential. This system originates from a diffuse interface model for incompressible isothermal…

偏微分方程分析 · 数学 2012-01-31 Sergio Frigeri , Maurizio Grasselli

We consider the Rayleigh--B\'{e}nard problem for the three--dimensional Boussinesq system for the micropolar fluid. We introduce the notion of the multivalued eventual semiflow and prove the existence of the two-space global attractor…

数学物理 · 物理学 2020-10-28 Piotr Kalita , Grzegorz Łukaszewicz

In this paper we study the long-time stability of the Cauchy one-leg theta-methods for the two-dimensional NavierStokes equations. We establish the uniform dissipativity in H^1, in the sense that the semi-discrete-in-time approximations…

数值分析 · 数学 2026-04-03 Isabel Barrio Sanchez , Catalin Trenchea , Wenlong Pei

In this paper, we study the long-time dynamics for the wave equation with nonlocal weak damping and sup-cubic nonlinearity in a bounded smooth domain of $\mathbb{R}^3.$ Based on the Strichartz estimates for the case of bounded domains, we…

偏微分方程分析 · 数学 2022-06-08 Senlin Yan , Chengkui Zhong , Zhijun Tang