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In this paper, we mainly study large time behavior of the strong solutions to the 2-D compressible finite extensible nonlinear elastic (FENE) dumbbell model. The Fourier splitting method yields that the $L^2$ decay rate is $\ln^{-l}(e+t)$…

偏微分方程分析 · 数学 2023-07-12 Zhaonan Luo , Wei Luo , Zhaoyang Yin

We derive Euler-Lagrange equations for the topology optimization of decay rate in 3-d lossy optical cavities. This leads to a new class of time-harmonic differential or integro-differential equations, which can be written as nonlinear…

最优化与控制 · 数学 2019-06-03 Matthias Eller , Illya M. Karabash

It is well-known that electromagnetic dispersive structures such as metamaterials can be modelled by generalized Drude-Lorentz models. The present paper is the first of two articles dedicated to dissipative generalized Drude-Lorentz open…

偏微分方程分析 · 数学 2023-05-31 Maxence Cassier , Patrick Joly , Luis Alejandro Rosas Martínez

We consider the large time behavior of global strong solutions to the compressible viscoelastic flows on the whole space $\mathbb{R}^N\,(N\geq 2)$, where the system describes the elastic properties of the compressible fluid. Adding a…

偏微分方程分析 · 数学 2019-09-11 Qunyi Bie , Hui Fang , Qiru Wang , Zheng-an Yao

We construct the global solution to the Cauchy's problem of the bipolar Euler-Poisson equations with damping in $\mathbb{R}^3$ when $H^3$ norm of the initial data is small. If further, the $\dot{H}^{-s}$ norm ($0\leq s<3/2)$ or…

偏微分方程分析 · 数学 2012-12-19 Zhigang Wu , Weike Wang

In 2002, Fatiha Alabau, Piermarco Cannarsa and Vilmos Komornik investigated the extent of asymptotic stability of the null solution for weakly coupled partially damped equations of the second order in time. The main point is that the…

偏微分方程分析 · 数学 2016-04-25 Alain Haraux , Mohamed Ali Jendoubi

We investigate the relaxation problem and the diffusion phenomenon for the compressible Euler system with a time-dependent damping coefficient of the form $\tfrac{\mu}{(1+t)^{\lambda}}$ in $\mathbb{R}^d$ $(d \geq 1)$. We establish uniform…

偏微分方程分析 · 数学 2025-12-09 Timothée Crin-Barat , Xinghong Pan , Ling-Yun Shou , Qimeng Zhu

We show that any dissipative (measure-valued) solution of the compressible Euler system that complies with Dafermos' criterion of maximal dissipation is necessarily an admissible weak solution. In addition, we propose a simple, at most two…

偏微分方程分析 · 数学 2025-01-23 Eduard Feireisl , Ansgar Jüngel , Mária Lukáčová-Medvid'ová

We study the large time behavior of solutions near a constant equilibrium to the compressible Euler-Maxwell system in $\r3$. We first refine a global existence theorem by assuming that the $H^3$ norm of the initial data is small, but the…

偏微分方程分析 · 数学 2015-09-29 Zhong Tan , Yanjin Wang , Yong Wang

In this paper, we are concerned with long time behavior of the strong solutions to the 2-D compressible Oldroyd-B and Hall-MHD model. By virtue of the improved Fourier splitting method and the time weighted energy estimate, we obtain the…

偏微分方程分析 · 数学 2023-07-11 Zhaonan Luo , Wei Luo , Zhaoyang Yin

The Vlasov-Poisson-Boltzmann System governs the time evolution of the distribution function for the dilute charged particles in the presence of a self-consistent electric potential force through the Poisson equation. In this paper, we are…

偏微分方程分析 · 数学 2011-04-05 Renjun Duan , Robert M. Strain

We establish the decay of the solutions of the damped wave equations in one dimensional space for the Dirichlet, Neumann, and dynamic boundary conditions where the damping coefficient is a function of space and time. The analysis is based…

最优化与控制 · 数学 2022-12-20 Yacine Chitour , Hoai-Minh Nguyen

We investigate the global well-posedness and large-time dynamics of the pressureless Euler--Monge--Amp\`ere (EMA) system with velocity damping in multidimensions, subject to radially symmetric initial data. We first establish the phenomenon…

偏微分方程分析 · 数学 2026-01-29 Kunhui Luan

This work first gives the global existence and optimal decay rates of solutions to the classical Timoshenko system on the framework of Besov spaces. Due to the \textit{non-symmetric} dissipation, the general theory for dissipative…

偏微分方程分析 · 数学 2015-03-17 Naofumi Mori , Jiang Xu , Shuichi Kawashima

The aim of this paper is to derive higher order energy estimates for solutions to the Cauchy problem for damped wave models with time-dependent propagation speed and dissipation. The model of interest is \begin{equation*}…

偏微分方程分析 · 数学 2019-08-29 Halit Sevki Aslan , Michael Reissig

We investigate the global well-posedness of the compressible Euler system with damping in Rd (d\geq1) and its relaxation limit toward the porous medium equation. In [12], the first author and Danchin studied these two problems in hybrid…

偏微分方程分析 · 数学 2026-02-04 Timothée Crin-Barat , Zihao Song

We consider the barotropic Euler equations with pairwise attractive Riesz interactions and linear velocity damping in the periodic domain. We establish the global-in-time well-posedness theory for the system near an equilibrium state. We…

偏微分方程分析 · 数学 2023-09-04 Young-Pil Choi , Jinwook Jung , Yoonjung Lee

We consider a second order linear evolution equation with a dissipative term multiplied by a time-dependent coefficient. Our aim is to design the coefficient in such a way that all solutions decay in time as fast as possible. We discover…

偏微分方程分析 · 数学 2015-06-24 Marina Ghisi , Massimo Gobbino , Alain Haraux

We prove sharp estimates for the decay in time of solutions to a rather general class of non-local in time subdiffusion equations on a bounded domain subject to a homogeneous Dirichlet boundary condition. Important special cases are the…

偏微分方程分析 · 数学 2013-10-02 Vicente Vergara , Rico Zacher

Very recently, a new decay framework has been given by [51] for linearized dissipative hyperbolic systems satisfying the Kawashima-Shizuta condition on the framework of Besov spaces, which allows to pay less attention on the traditional…

偏微分方程分析 · 数学 2014-10-21 Jiang Xu , Shuichi Kawashima