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We introduce a new model of the logarithmic type of wave-like equation with a nonlocal logarithmic damping mechanism, which is rather weakly effective as compared with frequently studied fractional damping cases. We consider the Cauchy…

Analysis of PDEs · Mathematics 2020-10-07 Alessandra Piske , Ruy Coimbra Charão , Ryo Ikehata

We introduce a new model of the logarithmic type of wave like plate equation with a nonlocal logarithmic damping mechanism. We consider the Cauchy problem for this new model in the whole space, and study the asymptotic profile and optimal…

Analysis of PDEs · Mathematics 2021-04-20 Ruy Coimbra Charao , Alessandra Piske , Ryo Ikehata

We consider wave equations with a special type of log-fractional damping. We study the Cauchy problem for this model in the whole space, and we obtain an asymptotic profile and optimal estimates of solutions as time goes to infinity in…

Analysis of PDEs · Mathematics 2022-10-06 Ruy Coimbra Charão , Ryo Ikehata

We study a nonlocal wave equation with logarithmic damping which is rather weak in the low frequency zone as compared with frequently studied strong damping case. We consider the Cauchy problem for this model in the whole space and we study…

Analysis of PDEs · Mathematics 2021-12-01 Ruy Coimbra Charao , Marcello D'Abbicco , Ryo Ikehata

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…

Analysis of PDEs · Mathematics 2020-02-18 Ruy Coimbra Charao , Ryo Ikehata

We consider the Cauchy problem of a dissipative nonlinear Schr\"odinger equation with a time dependent harmonic potential. We find a critical situation that the $L^2$-norm of dissipative solutions decays or not and which is decided by a…

Analysis of PDEs · Mathematics 2022-05-31 Masaki Kawamoto , Takuya Sato

We consider the asymptotic behavior as time goes to infinity of the $L^{2}$-norm of the velocity of the linearized compressible Navier-Stokes equations in ${\bf R}^{n}$ ($n \geq 2$). As an application we shall study the optimality of the…

Analysis of PDEs · Mathematics 2018-05-30 Ruy Coimbra Charao , Ryo Ikehata

We study the asymptotic behaviour in time of solutions and the theory of scattering for the modified Schr"odinger map in two space dimensions. We solve the Cauchy problem with large finite initial time, up to infinity in time, and we…

Analysis of PDEs · Mathematics 2007-05-23 J. Ginibre , G. Velo

We are considering the asimptotic behavior as $t\to\infty$ of solutions of the Cauchy problem for parabolic second order equations with time periodic coefficients. The problem is reduced to considering degenerate time-homogeneous diffusion…

Analysis of PDEs · Mathematics 2021-07-13 R. Z. Khasminskii , N. V. Krylov

We study the asymptotic convergence properties, as the time variable goes to infinity, of trajectories of second-order dissipative evolution equations combining potential with non-potential effects. We exhibit a sharp condition, involving…

Optimization and Control · Mathematics 2009-05-04 Hedy Attouch , Paul-Emile Mainge

In this paper, we study the large-time behavior of solutions to a class of partially dissipative linear hyperbolic systems with applications in velocity-jump processes in several dimensions. Given integers $n,d\ge 1$, let $\mathbf…

Analysis of PDEs · Mathematics 2017-08-01 Thinh Tien Nguyen

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…

Analysis of PDEs · Mathematics 2020-03-23 Kazumasa Fujiwara , Masahiro Ikeda , Yuta Wakasugi

In this work we study the asymptotic behavior of solutions for a general linear second-order evolution differential equation in time with fractional Laplace operators in $\mathbb{R}^n$. We obtain improved decay estimates with less demand on…

Analysis of PDEs · Mathematics 2018-02-06 M. F. G. Palma , C. R. da Luz

In this paper, we are interested in analyzing the asymptotic profiles of solutions to the Cauchy problem for linear structurally damped $\sigma$-evolution equations in $L^2$-sense. Depending on the parameters $\sigma$ and $\delta$ we would…

Analysis of PDEs · Mathematics 2019-08-23 Tuan Anh Dao

In this paper we obtain higher order asymptotic profilles of solutions to the Cauchy problem of the linear damped wave equation in $\textbf{R}^n$ \begin{equation*} u_{tt}-\Delta u+u_t=0, \qquad u(0,x)=u_0(x), \quad u_t(0,x)=u_1(x),…

Analysis of PDEs · Mathematics 2017-10-16 Hironori Michihisa

We consider a second order equation with a linear "elastic" part and a nonlinear damping term depending on a power of the norm of the velocity. We investigate the asymptotic behavior of solutions, after rescaling them suitably in order to…

Analysis of PDEs · Mathematics 2017-01-31 Marina Ghisi , Massimo Gobbino , Alain Haraux

We consider a wave equation with a nonlocal logarithmic damping depending on a small parameter $\theta \in (0,1/2)$. This research is a counter part of that was initiated by Charao-D'Abbicco-Ikehata considered in [5] for the large parameter…

Analysis of PDEs · Mathematics 2021-09-27 Alessandra Piske , Ruy Coimbra Charão , Ryo Ikehata

We consider an abstract second order evolution equation with damping. The "elastic" term is represented by a self-adjoint nonnegative operator A with discrete spectrum, and the nonlinear term has order greater than one at the origin. We…

Analysis of PDEs · Mathematics 2014-11-26 Marina Ghisi , Massimo Gobbino , Alain Haraux

We study an asymptotic behavior of solutions to elliptic equations of the second order in a two dimensional exterior domain. Under the assumption that the solution belongs to $L^q$ with $q \in [2,\infty)$, we prove a pointwise asymptotic…

Analysis of PDEs · Mathematics 2021-12-14 Hideo Kozono , Yutaka Terasawa , Yuta Wakasugi

In this paper we investigate the asymptotic behavior and decay of the solution of the discrete in time $N$-dimensional heat equation. We give a convergence rate with which the solution tends to the discrete fundamental solution, and the…

Analysis of PDEs · Mathematics 2021-02-23 Edgardo Alvarez , Luciano Abadias
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