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We consider the cubic nonlinear Schr\"odinger equation with long-range linear potentials in one space dimension, and prove the modified scattering in the energy space for the associated final state problem with a prescribed small asymptotic…

偏微分方程分析 · 数学 2024-12-24 Masaki Kawamoto , Haruya Mizutani

This paper is mainly concerned with the inverse scattering problem of determining the unknown potential for the classical Schr\"odinger equation in two and three dimensions. We establish the increasing stability of the inverse scattering…

偏微分方程分析 · 数学 2023-06-21 Jian Zhai , Yue Zhao

We develop direct and inverse scattering theory for one-dimensional Schroedinger operators with steplike potentials which are asymptotically close to different finite-gap periodic potentials on different half-axes. We give a complete…

谱理论 · 数学 2008-11-20 Anne Boutet de Monvel , Iryna Egorova , Gerald Teschl

This article is devoted to studying the inverse scattering for the fractional Schr\"{o}dinger equation, and in particular we solve the Born approximation problem. Based on the ($p$,$q$)-type resolvent estimate for the fractional Laplacian,…

偏微分方程分析 · 数学 2025-09-17 Saumyajit Das , Tuhin Ghosh , Shiqi Ma

We study one of multidimensional inverse scattering problems for quantum systems in a constant electric field, by utilization of the Enss-Weder time-dependent method. The main purpose of this paper is to propose some methods of sharpening…

数学物理 · 物理学 2023-07-31 Tadayoshi Adachi , Yuta Tsujii

We study the inverse backscattering problem for the Schr\"odinger equation in two dimensions. We prove that, for a non-smooth potential in 2D the main singularities up to 1/2 of the derivative of the potential are contained in the Born…

偏微分方程分析 · 数学 2012-09-14 Juan Manuel Reyes

We study an inverse scattering problem associated with a Schr\"odinger system where both the potential and source terms are random and unknown. The well-posedness of the forward scattering problem is first established in a proper sense. We…

偏微分方程分析 · 数学 2021-04-29 Jingzhi Li , Hongyu Liu , Shiqi Ma

We prove that the averaged scattering solutions to the Schr\"odinger equation with short-range electromagnetic potentials $(V,A)$ where $V(x)=O(|x|^{-\rho}), A(x)= O(|x|^{-\rho}), |x| \to \infty, \rho >1,$ are dense in the set of all…

数学物理 · 物理学 2020-05-22 Ricardo Weder

An inverse problem is considered for an inhomogeneous Schr\"odinger equation. Assuming that the potential vanishes outside a finite interval and satisfies some other technical assumptions, one proves the uniqueness of the recovery of this…

数学物理 · 物理学 2009-10-31 A. G. Ramm

This paper is concerned with the inverse elastic scattering problem for a random potential in three dimensions. Interpreted as a distribution, the potential is assumed to be a microlocally isotropic Gaussian random field whose covariance…

偏微分方程分析 · 数学 2021-02-16 Jianliang Li , Peijun Li , Xu Wang

An inverse scattering method based on an auxiliary inverse Sturm-Liouville problem recently proposed by Horv\'ath and Apagyi [Mod. Phys. Lett. B 22, 2137 (2008)] is examined in various aspects and developed further to (re)construct…

数学物理 · 物理学 2012-09-21 Tamas Palmai , Barnabas Apagyi

We study the nonlinear Schr\"odinger equation with an inverse-square potential in dimensions $3\leq d \leq 6$. We consider both focusing and defocusing nonlinearities in the mass-supercritical and energy-subcritical regime. In the focusing…

偏微分方程分析 · 数学 2018-01-01 Jing Lu , Changxing Miao , Jason Murphy

In this paper, we study the scattering theory for the cubic inhomogeneous Schr\"odinger equations with inverse square potential $iu_t+\Delta u-\frac{a}{|x|^2}u=\lambda |x|^{-b}|u|^2u$ with $a>-\frac14$ and $0<b<1$ in dimension three. In the…

偏微分方程分析 · 数学 2021-07-27 Ying Wang

In this article, we study the inverse scattering problem for the nonlinear fractional Helmholtz equation with cubic nonlinearity in three dimensions, where we recover a compactly supported potential from scattering amplitude.

偏微分方程分析 · 数学 2026-03-30 Saumyajit Das , Susovan Pramanik

The study of obstacle scattering for the Klein-Gordon equation in the presence of long-range magnetic potentials is addressed. Previous results of the authors are extended to the long-range case and the results the authors previously proved…

数学物理 · 物理学 2016-03-31 Miguel Ballesteros , Ricardo Weder

We consider the inverse scattering problem on the energy interval in three dimensions. We are focused on stability and instability questions for this problem. In particular, we prove an exponential instability estimate which shows…

偏微分方程分析 · 数学 2010-12-30 Mikhail Isaev

We study the long-time behavior of solutions to nonlinear Schroedinger equations with some critical rough potential of inverse square type. The new ingredients are the interaction Morawetz-type inequalities and Sobolev norm property…

偏微分方程分析 · 数学 2014-12-02 Junyong Zhang , Jiqiang Zheng

The direct and inverse scattering problems on the full line are analyzed for a first-order system of ordinary linear differential equations associated with the derivative nonlinear Schr\"odinger equation and related equations. The system…

数学物理 · 物理学 2019-08-15 Tuncay Aktosun , Ramazan Ercan

We consider two formally determined inverse problems for the wave equation in more than one space dimension. Motivated by the fixed angle inverse scattering problem, we show that a compactly supported potential is uniquely determined by the…

偏微分方程分析 · 数学 2020-02-19 Rakesh , Mikko Salo

In this article, we aim to study the scattering of the solution to the focusing inhomogeneous nonlinear Schr\"odinger equation with a potential of form \begin{align*} i\partial_t u+\Delta u- Vu=-|x|^{-b}|u|^{p-1}u \end{align*} in the energy…

偏微分方程分析 · 数学 2024-01-05 Fanfei Meng , Sheng Wang , Chengbin Xu