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We consider a 2D system that models the nematic liquid crystal flow through the Navier--Stokes equations suitably coupled with a transport-reaction-diffusion equation for the averaged molecular orientations. This system has been proposed as…

Analysis of PDEs · Mathematics 2012-10-09 Maurizio Grasselli , Hao Wu

We consider incompressible Navier-Stokes equations in a bounded 2D domain, complete with the so-called dynamic slip boundary conditions. Assuming that the data are regular, we show that weak solutions are strong. As an application, we…

Analysis of PDEs · Mathematics 2024-02-27 Dalibor Pražák , Michael Zelina

In this paper, we consider the initial boundary value problem for the three-dimensional viscous primitive equations of large-scale moist atmosphere which are used to describe the turbulent behavior of long-term weather prediction and…

Analysis of PDEs · Mathematics 2007-05-23 Boling Guo , Daiwen Huang

We study two damped and forced discrete nonlinear Schr\"odinger equations on the one-dimensional infinite lattice. Without damping and forcing they are represented by the integrable Ablowitz-Ladik equation (AL) featuring non-local cubic…

Analysis of PDEs · Mathematics 2021-03-08 Dirk Hennig

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…

Analysis of PDEs · Mathematics 2012-02-21 Antonio Segatti , Hao Wu

In this paper, we investigate the global existence of weak solutions to 3-D inhomogeneous incompressible MHD equations with variable viscosity and resistivity, which is sufficiently close to $1$ in $L^\infty(\mathbb{R}^3),$ provided that…

Analysis of PDEs · Mathematics 2025-03-04 Hammadi Abidi , Guilong Gui , Ping Zhang

The existence of an exponential attractor for the diffusive Hindmarsh-Rose equations on a three-dimensional bounded domain originated in the study of neurodynamics is proved through uniform estimates together with a new theorem on the…

Analysis of PDEs · Mathematics 2019-08-19 Chi Phan , Yuncheng You

The long-time behavior of the solutions for a non-isothermal model in superfluidity is investigated. The model describes the transition between the normal and the superfluid phase in liquid 4He by means of a non-linear differential system,…

Mathematical Physics · Physics 2011-02-08 Alessia Berti , Valeria Berti , Ivana Bochicchio

We study a free interface problem related to combustion of condensed matter and some non-equilibrium exothermal phase transitions. In spite of a variety of non-trivial dynamical scenarios exhibited by the model the solutions are uniformly…

Chaotic Dynamics · Physics 2016-09-08 M. Frankel , V. Roytburd

In this paper, we consider a damped Navier-Stokes-Bardina model posed on the whole three-dimensional. These equations have an important physical motivation and they arise from some oceanic model. From the mathematical point of view, they…

Analysis of PDEs · Mathematics 2021-07-27 Manuel Fernando Cortez , Oscar Jarrín

The global attraction is established for all finite energy solutions to a model $\mathbf{U}(1)$-invariant nonlinear Klein-Gordon equation in one dimension coupled to a finite number of nonlinear oscillators: We prove that {\it each finite…

Analysis of PDEs · Mathematics 2007-11-10 Alexander Komech , Andrew Komech

Properties of an infinite system of nonlinearly coupled ordinary differential equations are discussed. This system models some properties present in the equations of motion for an inviscid fluid such as the skew symmetry and the…

Analysis of PDEs · Mathematics 2007-05-23 Alexey Cheskidov , Susan Friedlander , Natasa Pavlović

In this work, we carry out the asymptotic analysis of the two dimensional convective Brinkman-Forchheimer (CBF) equations, which characterize the motion of incompressible fluid flows in a saturated porous medium. We establish the existence…

Analysis of PDEs · Mathematics 2020-12-01 Manil T. Mohan

We analyze the long-time behavior of solutions to a Navier-Stokes-Cahn-Hilliard system with chemotaxis effects and a solution-dependent mass source term. The fluid velocity satisfies the Navier-Stokes system, the phase field variable…

Analysis of PDEs · Mathematics 2024-12-31 Jingning He

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

A well-known diffuse interface model for incompressible isothermal mixtures of two immiscible fluids consists of the Navier-Stokes system coupled with a convective Cahn-Hilliard equation. In some recent contributions the standard…

Analysis of PDEs · Mathematics 2013-01-14 Sergio Frigeri , Maurizio Grasselli , Pavel Krejčí

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

In this work we consider a four compartment Brusselator system. The reaction terms of this system are of non constant sign, thus components of the solution are not bounded apriori, and functional means to derive apriori bounds will fail. We…

Dynamical Systems · Mathematics 2015-03-06 Rana D. Parshad , Said Kouachi , Nitu Kumari

First, a new sufficient condition for uniqueness of weak solutions is proved for the system of 2D viscous Primitive Equations. Second, global existence and uniqueness are established for several classes of weak solutions with partial…

Analysis of PDEs · Mathematics 2018-08-10 Ning Ju

This paper considers the dynamical behavior of solutions of constitutive systems for 1D compressible viscous and heat-conducting micropolar fluids. With proper constraints on initial data, we prove the existence of global attractors in…

Analysis of PDEs · Mathematics 2018-06-06 Lan Huang , Xin-Guang Yang , Yongjin Lu , Taige Wang