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相关论文: The Calder\'on problem with partial data

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The purpose of this article is to extend the uniqueness results for the two dimensional Calder\'on problem to unbounded potentials on general geometric settings. We prove that the Cauchy data sets for Schr\"odinger equations uniquely…

偏微分方程分析 · 数学 2020-07-14 Yilin Ma

We show in two dimensions that measuring Dirichlet data for the conductivity equation on an open subset of the boundary and, roughly speaking, Neumann data in slightly larger set than the complement uniquely determines the conductivity on a…

偏微分方程分析 · 数学 2008-09-19 Oleg Yu. Imanuvilov , Gunther Uhlmann , masahiro Yamamoto

We show global uniqueness in an inverse problem for the fractional Schr\"odinger equation: an unknown potential in a bounded domain is uniquely determined by exterior measurements of solutions. We also show global uniqueness in the partial…

偏微分方程分析 · 数学 2020-03-25 Tuhin Ghosh , Mikko Salo , Gunther Uhlmann

We extend a global uniqueness result for the Calder\'on problem with partial data, due to Kenig-Sj\"ostrand-Uhlmann, to the case of less regular conductivities. Specifically, we show that in dimensions $n\ge 3$, the knowledge of the…

偏微分方程分析 · 数学 2016-06-22 Katya Krupchyk , Gunther Uhlmann

This is a follow-up of a previous article where we proved local stability estimates for a potential in a Schr\"odinger equation on an open bounded set in dimension $n=3$ from the Dirichlet-to-Neumann map with partial data. The region under…

偏微分方程分析 · 数学 2014-05-07 David Dos Santos Ferreira , Pedro Caro , Alberto Ruiz

We consider the Calder\'on problem with partial data in certain admissible geometries, that is, on compact Riemannian manifolds with boundary which are conformally embedded in a product of the Euclidean line and a simple manifold. We show…

偏微分方程分析 · 数学 2016-02-16 Casey Rodriguez

In this paper we show, in dimension n >=3, that knowledge of the Cauchy data for the Schroedinger equation in the presence of a magnetic potential, measured on possibly very small subsets of the boundary, determines uniquely the magnetic…

偏微分方程分析 · 数学 2007-05-23 David Dos Santos Ferreira , Carlos Kenig , Johannes Sjoestrand , Gunther Uhlmann

In this note we discuss the conditional stability issue for the finite dimensional Calder\'on problem for the fractional Schr\"{o}dinger equation with a finite number of measurements. More precisely, we assume that the unknown potential $q…

偏微分方程分析 · 数学 2018-05-03 Angkana Rüland , Eva Sincich

The Calder\'on problem for the fractional Schr\"odinger equation was introduced in the work \cite{GSU}, which gave a global uniqueness result also in the partial data case. This article improves this result in two ways. First, we prove a…

偏微分方程分析 · 数学 2020-02-17 Angkana Rüland , Mikko Salo

We prove for a two dimensional bounded domain that the Cauchy data for the Schroedinger equation measured on an arbitrary open subset of the boundary determines uniquely the potential. This implies, for the conductivity equation, that if we…

偏微分方程分析 · 数学 2008-10-14 Oleg Y. Imanuvilov , Gunther Uhlmann , Masahiro Yamamoto

We investigate the Calder\'on problem for the fractional Schr\"odinger equation with drift, proving that the unknown drift and potential in a bounded domain can be determined simultaneously and uniquely by an infinite number of exterior…

偏微分方程分析 · 数学 2018-12-19 Mihajlo Cekić , Yi-Hsuan Lin , Angkana Rüland

We show that an electric potential and magnetic field can be uniquely determined by partial boundary measurements of the Neumann-to-Dirichlet map of the associated magnetic Schr\"{o}dinger operator. This improves upon previous results of…

偏微分方程分析 · 数学 2014-02-19 Francis J. Chung

We consider the Cauchy problem for the nonlinear Schr\"{o}dinger equation with derivative nonlinearity $(i\partial _t + \Delta ) u= \pm \partial (\overline{u}^m)$ on $\R ^d$, $d \ge 1$, with random initial data, where $\partial$ is a first…

偏微分方程分析 · 数学 2018-06-08 Hiroyuki Hirayama , Mamoru Okamoto

This paper studies the quantum Boltzmann Nordheim equation from a Boltzmann equation for Haldane statistics. Strong solutions are obtained for the Cauchy problem with initial data in L1 and uniformly bounded on a one (resp. two or…

数学物理 · 物理学 2018-01-09 L. Arkeryd , A. Nouri

We consider the Calder\`on problem in an infinite cylindrical domain, whose cross section is a bounded domain of the plane. We prove log-log stability in the determination of the isotropic periodic conductivity coefficient from partial…

偏微分方程分析 · 数学 2017-11-22 Mourad Choulli , Yavar Kian , Eric Soccorsi

We consider the Dirichlet-to-Neumann map associated to the Schr\"odinger equation with a potential in a bounded Lipschitz domain in three or more dimensions. We show that the integral of the potential over a two-plane is determined by the…

偏微分方程分析 · 数学 2007-05-23 Allan Greenleaf , Gunther Uhlmann

We review recent progress in the fractional Calder\'on problem, where one tries to determine an unknown coefficient in a fractional Schr\"odinger equation from exterior measurements of solutions. This equation enjoys remarkable uniqueness…

偏微分方程分析 · 数学 2018-02-16 Mikko Salo

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

We demonstrate a quantitative version of the usual properties related to unique continuation from an interior datum for the Schr\"odinger equation with bounded or unbounded potential. The inequalities we establish have constants that…

偏微分方程分析 · 数学 2025-04-11 Mourad Choulli , Hiroshi Takase

We consider the problem of recovering the coefficient \sigma(x) of the elliptic equation \grad \cdot(\sigma \grad u)=0 in a body from measurements of the Cauchy data on possibly very small subsets of its surface. We give a constructive…

偏微分方程分析 · 数学 2009-08-27 Adrian Nachman , Brian Street
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