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We consider the total energy decay together with L^2-bound of the solution itself of the Cauchy problem for wave equations with a localized damping and a short-range potential. We treat it in the one dimensional Euclidean space R. We adopt…

偏微分方程分析 · 数学 2023-02-17 Ryo Ikehata , Xiaoyan Li

We study the Cauchy problem for multi-dimensional compressible radiation hydrodynamics equations with vacuum. First, we present some sufficient conditions on the blow-up of smooth solutions in multi-dimensional space. Then, we obtain the…

数学物理 · 物理学 2014-01-14 Yachun Li , Shengguo Zhu

We consider the viscous $n$-dimensional Camassa-Holm equations, with $n=2,3,4$ in the whole space. We establish existence and regularity of the solutions and study the large time behavior of the solutions in several Sobolev spaces. We first…

偏微分方程分析 · 数学 2007-11-27 Clayton Bjorland , Maria E. Schonbek

We are interested in the large-time behavior of periodic entropy solutions in $L^\infty$ to anisotropic degenerate parabolic-hyperbolic equations of second-order. Unlike the pure hyperbolic case, the nonlinear equation is no longer…

偏微分方程分析 · 数学 2008-10-17 Gui-Qiang Chen , Benoit Perthame

We consider damped wave equations with a potential and rotational inertia terms. We study the Cauchy problem for this model in the one dimensional Euclidean space and we obtain fast energy decay and L^2-decay of the solution itself as time…

偏微分方程分析 · 数学 2024-12-05 Ruy Coimbra Charão , Ryo Ikehata

We consider the large time behavior of the solution to the anisotropic Navier--Stokes equations in a $3$D half-space. Investigating the precise anisotropic nature of linearized solutions, we obtain the optimal decay estimates for the…

偏微分方程分析 · 数学 2024-10-08 Mikihiro Fujii , Yang Li

We establish the time decay rates of the solution to the Cauchy problem for the compressible Navier-Stokes-Poisson system via a refined pure energy method. In particular, the optimal decay rates of the higher-order spatial derivatives of…

偏微分方程分析 · 数学 2011-12-22 Yanjin Wang

We study the large time behavior of solutions to the semilinear wave equation with space-dependent damping and absorbing nonlinearity in the whole space or exterior domains. Our result shows how the amplitude of the damping coefficient, the…

偏微分方程分析 · 数学 2024-03-12 Yuta Wakasugi

In the present paper, we prove time decay estimates of solutions in weighted Sobolev spaces to the second order evolution equation with fractional Laplacian and damping for data in Besov spaces. Our estimates generalize the estimates…

偏微分方程分析 · 数学 2020-03-23 Kazumasa Fujiwara , Masahiro Ikeda , Yuta Wakasugi

For the hyperbolic system of quasilinear first-order partial differential equations, linearizable by hodograph transformation, the conservation laws are used to solve the Cauchy problem. The equivalence of the initial problem for…

数学物理 · 物理学 2012-10-16 Sergey I. Senashov , Alexander Yakhno

We consider the Cauchy problem for a system of balance laws derived from a chemotaxis model with singular sensitivity in multiple space dimensions. Utilizing energy methods, we first prove the global well-posedness of classical solutions to…

偏微分方程分析 · 数学 2020-08-26 Tong Li , Dehua Wang , Fang Wang , Zhi-An Wang , Kun Zhao

This paper is concerned with optimal time-decay estimates of solutions of the Cauchy problem to a model system of the radiating gas in $\mathbb{R}^n$. Compared to Liu and Kawashima (2011) \cite{Liu1} and Wang and Wang (2009) \cite{Wang},…

偏微分方程分析 · 数学 2013-11-06 Wenjun Wang , Zhigang Wu

In this paper, we investigate the global well-posedness and optimal time-decay of classical solutions for the 3-D full compressible Navier-Stokes system, which is given by the motion of the compressible viscous and heat-conductive gases.…

偏微分方程分析 · 数学 2025-03-20 Wenwen Huo , Chao Zhang

We consider the Cauchy problem for the nonstationary discrete p-Laplacian with inhomogeneous density \r{ho}(x) on an infinite graph which supports the Sobolev inequality. For nonnegative solutions when p > 2, we prove the precise rate of…

偏微分方程分析 · 数学 2025-12-25 Alan A. Tedeev

We study the Cauchy problem for a nonlocal heat equation, which is of fractional order both in space and time. We prove four main theorems: (i) a representation formula for classical solutions, (ii) a quantitative decay rate at which the…

偏微分方程分析 · 数学 2015-07-10 Jukka Kemppainen , Juhana Siljander , Rico Zacher

This paper studies the large time behavior of solutions to semi-linear Cauchy problems with quadratic nonlinearity in gradients. The Cauchy problem considered has a general state space and may degenerate on the boundary of the state space.…

偏微分方程分析 · 数学 2014-06-02 Scott Robertson , Hao Xing

We start with the classic result that the Cauchy problem for ideal compressible gas dynamics is locally well posed in time in the sense of Hadamard; there is a unique solution that depends continuously on initial data in Sobolev space $H^s$…

偏微分方程分析 · 数学 2016-11-18 Barbara Lee Keyfitz , Feride Tiglay

In this paper, we investigate the convergence of the global large solution to its associated constant equilibrium state with an explicit decay rate for the compressible Navier-Stokes equations in three-dimensional whole space. Suppose the…

偏微分方程分析 · 数学 2020-07-28 Jincheng Gao , Zhengzhen Wei , Zheng-an Yao

In this paper we consider the Cauchy problem to the Korteweg system with the general pressure in dimension $d\geq2$, and establish the global well-posedness of strong solution for the small initial data in $L^p$ type critical Besov spaces…

偏微分方程分析 · 数学 2018-08-17 Jinlu Li , Yanghai Yu , Weipeng Zhu

The present paper deals with the Cauchy problem of a compressible generic two-fluid model with capillarity effects in any dimension $N\geq2$. We first study the unique global solvability of the model in spaces with critical regularity…

偏微分方程分析 · 数学 2020-10-05 Fuyi Xu , Meiling Chi