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We introduce a new model of the nonlocal wave equations with a logarithmic damping mechanism. We consider the Cauchy poroblem for the new model in the whole space. We study the asymptotic profile and optimal decay and blowup rates of…

偏微分方程分析 · 数学 2020-02-18 Ruy Coimbra Charao , Ryo Ikehata

In this paper we consider elastic waves with Kelvin-Voigt damping in 2D. For the linear problem, applying pointwise estimates of the partial Fourier transform of solutions in the Fourier space and asymptotic expansions of eigenvalues and…

偏微分方程分析 · 数学 2020-03-24 Wenhui Chen

In this paper, we investigate the energy decay of the solution to a viscoelastic wave equation with variable exponents logarithmic nonlinearity and weak damping in a bounded domain. We establish an explicit general decay result under mild…

偏微分方程分析 · 数学 2026-01-06 Qingqing Peng , Yikan Liu

It is known that for some time periodic potentials $q(t, x) \geq 0$ having compact support with respect to $x$ some solutions of the Cauchy problem for the wave equation $\partial_t^2 u - \Delta_x u + q(t,x)u = 0$ have exponentially…

偏微分方程分析 · 数学 2018-03-19 Vesselin Petkov , Nikolay Tzvetkov

This article gives an energy decay result for small data solutions to a class of semilinear wave equations in two space dimensions possessing weakly dissipative structure relevant to the Agemi condition.

偏微分方程分析 · 数学 2021-10-15 Yoshinori Nishii , Hideaki Sunagawa , Hiroki Terashita

We establish local energy decay for damped magnetic wave equations on stationary, asymptotically flat space-times subject to the geometric control condition. More specifically, we allow for the addition of time-independent magnetic and…

偏微分方程分析 · 数学 2025-08-14 Collin Kofroth

This paper is concerned with weighted energy estimates for solutions to wave equation $\partial_t^2u-\Delta u + a(x)\partial_tu=0$ with space-dependent damping term $a(x)=|x|^{-\alpha}$ $(\alpha\in [0,1))$ in an exterior domain $\Omega$…

偏微分方程分析 · 数学 2021-12-14 Motohiro Sobajima , Yuta Wakasugi

In this paper we study the Boltzmann equation near global Maxwellians in the $d$-dimensional whole space. A unique global-in-time mild solution to the Cauchy problem of the equation is established in a Chemin-Lerner type space with respect…

偏微分方程分析 · 数学 2017-12-06 Renjun Duan , Shota Sakamoto

The topic of this paper is a semi-linear, defocusing wave equation $u_{t t}-\Delta u=-|u|^{p-1} u$ in sub-conformal case in the higher dimensional space whose initial data are radical and come with a finite energy. We prove some decay…

偏微分方程分析 · 数学 2021-06-29 Liang Li , Ruipeng Shen

We prove global pointwise decay estimates for a class of defocusing semilinear wave equations in $n=3$ dimensions restricted to spherical symmetry. The technique is based on a conformal transformation and a suitable choice of the mapping…

偏微分方程分析 · 数学 2011-03-23 Roger Bieli , Nikodem Szpak

The Cauchy problem for a nonlinear elastic wave equations with viscoelastic damping terms is considered on the 3 dimensional whole space. Decay and smoothing properties of the solutions are investigated when the initial data are…

偏微分方程分析 · 数学 2021-11-09 Yoshiyuki Kagei , Hiroshi Takeda

We consider the Cauchy problem of the two-dimensional Schr\"odinger-Poisson system in the energy class. Though the Newtonian potential diverges at the spatial infinity in the logarithmic order, global well-posedness is proven in both…

偏微分方程分析 · 数学 2010-01-26 Satoshi Masaki

We prove local decay estimates for the wave equation in the asymptotically Euclidean setting. In even dimensions we go beyond the optimal decay by providing the large time asymptotic profile, given by a solution of the free wave equation.…

偏微分方程分析 · 数学 2025-01-29 Rayan Fahs , Julien Royer

Global existence for small data Cauchy problem of semilinear wave equations with scaling invariant damping in 3-D is established in this work, assuming that the data are radial and the constant in front of the damping belongs to $[1.5, 2)$.…

偏微分方程分析 · 数学 2021-02-02 Ning-An Lai , Yi Zhou

We show that solutions of nonlinear nonlocal Fokker--Planck equations in a bounded domain with no-flux boundary conditions can be approximated by Cauchy problems with increasingly strong confining potentials defined in the whole space. Two…

偏微分方程分析 · 数学 2019-03-12 Luca Alasio , Maria Bruna , José Antonio Carrillo

We prove the decay in the energy space for the solution to the defocusing biharmonic Hartree-Fock equations with mass-supercritical and energy-subcritical Choquard-type nonlinearity in space dimension $d\geq3$. We treat both the free and…

偏微分方程分析 · 数学 2021-08-31 Mirko Tarulli , George Venkov

In this article, we prove the global (in time) existence of small data solutions from energy spaces basing on $L^q$ spaces, with $q \in (1,\infty)$, to the Cauchy problems for a weakly coupled system of semi-linear visco-elastic damped…

偏微分方程分析 · 数学 2018-10-24 Tuan Anh Dao

We consider the stabilization problem on a manifold with boundary for a wave equation with measure-valued linear damping. For a wide class of measures, containing Dirac masses on hypersurfaces as well as measures with fractal support, we…

偏微分方程分析 · 数学 2025-03-10 Hans Christianson , Emmanuel Schenck , Michael Taylor

In this paper we study the behaviors of the energy of solutions of the wave equations with localized nonlinear damping in exterior domains.

偏微分方程分析 · 数学 2017-06-27 Moez Daoulatli

We consider the spatially inhomogeneous non-cutoff Boltzmann equation with hard potentials in the non-perturbative setting. For initial data with polynomial decay in the velocity variable, we establish the local-in-time existence and…

偏微分方程分析 · 数学 2026-02-24 Hao-Guang Li , Wei-Xi Li , Chao-Jiang Xu