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The Cauchy problem for the Schr\"odinger equations is studied with time-dependent potentials growing polynomially in the spatial direction. First the existence and the uniqueness of solutions are shown in the weighted Sobolev spaces. In…

偏微分方程分析 · 数学 2017-09-22 Wataru Ichinose

In this paper, we investigate the initial value problem for symmetric hyperbolic systems on globally hyperbolic Lorentzian manifolds with potentials that are both nonlocal in time and space. When the potential is retarded and uniformly…

偏微分方程分析 · 数学 2025-07-08 Felix Finster , Simone Murro , Gabriel Schmid

We investigate the following inhomogeneous nonlinear Schr\"odinger equation in the radial regime, featuring a focusing energy-critical nonlinearity and a defocusing perturbation: $$ i\partial_t u +\Delta u =|x|^{-a} |u|^{p-2} u - |x|^{-b}…

偏微分方程分析 · 数学 2025-02-04 Tianxiang Gou , Mohamed Majdoub , Tarek Saanouni

We consider the mass-critical focusing nonlinear Schrodinger equation in the presence of an external potential, when the nonlinearity is inhomogeneous. We show that if the inhomogeneous factor in front of the nonlinearity is sufficiently…

数学物理 · 物理学 2011-09-22 Valeria Banica , Rémi Carles , Thomas Duyckaerts

We investigate an energy-subcritical defocusing nonlinear Schr\"odinger equation in $\mathbb R^3$ subject to a lower order nonlinear trapping potential and a spatially dependent nonlinear damping: \begin{equation*} i\partial_t u + \Delta u…

偏微分方程分析 · 数学 2026-03-13 David Lafontaine , Boris Shakarov

We consider a nonlinear semi-classical Schroedinger equation for which quadratic oscillations lead to focusing at one point, described by a nonlinear scattering operator. The relevance of the nonlinearity was discussed by R. Carles, C.…

偏微分方程分析 · 数学 2007-05-23 Remi Carles , Sahbi Keraani

We consider the defocusing energy-critical nonlinear Schr\"odinger equation with inverse-square potential $iu_t = -\Delta u + a|x|^{-2}u + |u|^4u$ in three space dimensions. We prove global well-posedness and scattering for $a>-\frac14…

偏微分方程分析 · 数学 2015-09-22 R. Killip , C. Miao , M. Visan , J. Zhang , J. Zheng

We study the Cauchy problem for the nonlinear damped wave equation and establish the large data local well-posedness and small data global well-posedness with slowly decaying initial data. We also prove that the asymptotic profile of the…

偏微分方程分析 · 数学 2019-03-14 Masahiro Ikeda , Takahisa Inui , Yuta Wakasugi

We analyze dynamical properties of the logarithmic Schr{\"o}dinger equation under a quadratic potential. The sign of the nonlinearity is such that it is known that in the absence of external potential, every solution is dispersive, with a…

偏微分方程分析 · 数学 2023-12-04 Rémi Carles , Guillaume Ferriere

For the semi-classical limit of the cubic, defocusing nonlinear Schrodinger equation with an external potential, we explain the notion of criticality before a caustic is formed. In the sub-critical and critical cases, we justify the WKB…

偏微分方程分析 · 数学 2016-08-14 Rémi Carles

In this paper, we study the solutions to the energy-critical quadratic nonlinear Schr\"odinger system in ${\dot H}^1\times{\dot H}^1$, where the sign of its potential energy can not be determined directly. If the initial data ${\rm u}_0$ is…

偏微分方程分析 · 数学 2021-07-13 Chuanwei Gao , Fanfei Meng , Chengbin Xu , Jiqiang Zheng

We consider the focusing nonlinear Schr\"odinger equation in three spatial dimensions with powers close to three and prove the existence of a self-similar solution. This generalizes a previous result on the cubic case and shows that…

偏微分方程分析 · 数学 2025-09-24 Roland Donninger , Lorenz Lichtnecker

We consider the Cauchy problem for the fourth order nonlinear Schr\"{o}dinger equation with derivative nonlinearity $(i\partial _t + \Delta ^2) u= \pm \partial (|u|^2u)$ on $\mathbb{R} ^d$, $d \ge 3$, with random initial data, where…

偏微分方程分析 · 数学 2015-05-26 Hiroyuki Hirayama , Mamoru Okamoto

This paper is concerned with the hypercoercivity property of solutions to the Cauchy problem on the linear Boltzmann equation with a confining potential force. We obtain the exponential time rate of solutions converging to the steady state…

偏微分方程分析 · 数学 2015-06-03 Renjun Duan , Wei-Xi Li

We are interested in the scattering problem for the cubic 3D nonlinear defocusing Schr\"odinger equation with variable coefficients. Previous scattering results for such problems address only the cases with constant coefficients or assume…

偏微分方程分析 · 数学 2025-03-10 David Lafontaine , Boris Shakarov

This paper is devoted to the well-posedness of stochastic nonlinear Schr\"odinger equations in the energy space H1(Rd), which is a natural continuation of our recent work [1]. We consider both focusing and defocusing nonlinearities and…

概率论 · 数学 2014-04-22 Viorel Barbu , Michael Röckner , Deng Zhang

We study positive bound states for the semiclassical stationary nonlinear Schr\"odinger equation. We are especially interested in solutions which concentrate on a lower dimensional sphere. We adopt a purely variational approach which allows…

偏微分方程分析 · 数学 2011-11-08 Denis Bonheure , Jonathan Di Cosmo , Jean Van Schaftingen

This paper is devoted to the study of noise effects on blow-up solutions to stochastic nonlinear Schr\"odinger equations. It is a continuation of our recent work \cite{BRZ14}, where the (local) well-posedness is established in $H^1$, also…

概率论 · 数学 2014-09-16 Viorel Barbu , Michael Röckner , Deng Zhang

We consider the Cauchy problem for the $L^{2}$-critical nonlinear Schr\"{o}dinger equation with a nonlinear damping. According to the power of the damping term, we prove the global existence or the existence of finite time blowup dynamics…

偏微分方程分析 · 数学 2013-01-16 Mohamad Darwich

In this work, we consider the energy-supercritical defocusing cubic nonlinear wave equation in dimension d=5 for radially symmetric initial data. We prove that an a priori bound in the critical space implies global well-posedness and…

偏微分方程分析 · 数学 2015-07-22 Aynur Bulut