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相关论文: The Calderon Problem Revisited: Reconstruction Wit…

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We consider the inverse Calder\'on problem consisting of determining the conductivity inside a medium by electrical measurements on its surface. Ideally, these measurements determine the Dirichlet-to-Neumann map and, therefore, one usually…

偏微分方程分析 · 数学 2017-06-28 Pedro Caro , Andoni Garcia

This short note modifies a reconstruction method by the author (Comm. PDE, 45(9):1118-1133, 2020), for reconstructing piecewise constant conductivities in the Calder\'on problem (electrical impedance tomography). In the former paper, a…

偏微分方程分析 · 数学 2025-12-08 Henrik Garde

Electrical Impedance Tomography gives rise to the severely ill-posed Calder\'on problem of determining the electrical conductivity distribution in a bounded domain from knowledge of the associated Dirichlet-to-Neumann map for the governing…

偏微分方程分析 · 数学 2022-01-26 Kim Knudsen , Aksel K. Rasmussen

We consider the Dirichlet-to-Neumann operator and the direct and inverse Calder\'on's mappings appearing in the Inverse Problem of recovering a smooth bounded and positive isotropic conductivity of a material filling a smooth bounded domain…

偏微分方程分析 · 数学 2024-04-16 Javier Castro , Claudio Muñoz , Nicolás Valenzuela

We consider the reconstruction of the support of an unknown perturbation to a known conductivity coefficient in Calder\'on's problem. In a previous result by the authors on monotonicity-based reconstruction, the perturbed coefficient is…

偏微分方程分析 · 数学 2022-08-24 Henrik Garde , Nuutti Hyvönen

We study an elastic Calderon-type inverse problem: recover the mass density $\rho(x)$ in a bounded domain $\Omega\subset\mathbb{R}^3$ from the Neumann-to-Dirichlet map associated with the isotropic Lam\'e system…

偏微分方程分析 · 数学 2026-01-19 Huaian Diao , Mourad Sini , Ruixiang Tang

In this note, we study Calder\'on's problem for certain classes of conductivities in domains with circular symmetry in two and three dimensions. Explicit formulas are obtained for the reconstruction of the conductivity from the…

偏微分方程分析 · 数学 2019-03-19 Mai Thi Kim Dung , Dang Anh Tuan

We derive exact reconstruction methods for cracks consisting of unions of Lipschitz hypersurfaces in the context of Calder\'on's inverse conductivity problem. Our first method obtains upper bounds for the unknown cracks, bounds that can be…

偏微分方程分析 · 数学 2024-05-24 Henrik Garde , Michael Vogelius

We consider the inverse problem of recovering a potential from the Dirichlet to Neumann map at a large fixed frequency on certain Riemannian manifolds. We extend the earlier result of [G. Uhlmann and Y. Wang, arXiv:2104.03477] to the case…

偏微分方程分析 · 数学 2023-09-01 Shiqi Ma , Suman Kumar Sahoo , Mikko Salo

A generalized variant of the Calder\'on problem from electrical impedance tomography with partial data for anisotropic Lipschitz conductivities is considered in an arbitrary space dimension $n \geq 2$. The following two results are shown:…

谱理论 · 数学 2012-05-22 Jussi Behrndt , Jonathan Rohleder

We study a version of Calder\'on's problem for harmonic maps between Riemannian manifolds. By using the higher linearization method, we first show that the Dirichlet-to-Neumann map determines the metric on the domain up to a natural gauge…

偏微分方程分析 · 数学 2024-11-05 Sebastián Muñoz-Thon

We extend the monotonicity method for direct exact reconstruction of inclusions in the partial data Calder\'on problem, to the case of general anisotropic conductivities in any spatial dimension $d\geq 2$. From a local Neumann-to-Dirichlet…

偏微分方程分析 · 数学 2025-12-02 Henrik Garde , David Johansson , Thanasis Zacharopoulos

In this paper we show uniqueness of the conductivity for the quasilinear Calder\'on's inverse problem. The nonlinear conductivity depends, in a nonlinear fashion, of the potential itself and its gradient. Under some structural assumptions…

偏微分方程分析 · 数学 2018-06-26 Claudio Muñoz , Gunther Uhlmann

The main goal of this article is to study a Calder\'on type inverse problem for certain viscous nonlocal wave equations. We show that the partial Dirichlet to Neumann map uniquely determines on the one hand linear perturbations and on the…

偏微分方程分析 · 数学 2026-01-06 Philipp Zimmermann

In this paper, we address a classical case of the Calder\'on (or conductivity) inverse problem in dimension two. We aim to recover the location and the shape of a single cavity $\omega$ (with boundary $\gamma$) contained in a domain…

偏微分方程分析 · 数学 2015-09-10 Alexandre Munnier , Karim Ramdani

In this article, we investigate an inverse problem for a semi-linear wave equation posed on bounded domain in $\mathbb{R}^{n+1}$, with $n \geq 2$. Our primary objective is to reconstruct the damping coefficient, the linear and nonlinear…

偏微分方程分析 · 数学 2026-04-07 Rahul Bhardwaj , Mandeep Kumar , Manmohan Vashisth

This work presents a new constructive uniqueness proof for Calder\'on's inverse problem of electrical impedance tomography, subject to local Cauchy data, for a large class of piecewise constant conductivities that we call "piecewise…

偏微分方程分析 · 数学 2020-08-18 Henrik Garde

We consider the restricted Dirichlet-to-Neumann map $\Lambda^{U,V}_{g,A,q}$ for the wave equation with magnetic potential $A$ and scalar potential $q$, on an admissible Lorentzian manifold $(M, g)$ of dimension $n \geq 3$ with boundary.…

偏微分方程分析 · 数学 2025-05-21 Yuchao Yi , Yang Zhang

We prove a global uniqueness result for the Calder\'{o}n inverse problem for a general quasilinear isotropic conductivity equation on a bounded open set with smooth boundary in dimension $n\ge 3$. Performing higher order linearizations of…

偏微分方程分析 · 数学 2023-05-10 Cătălin I. Cârstea , Ali Feizmohammadi , Yavar Kian , Katya Krupchyk , Gunther Uhlmann

We study both the Riemannian and Lorentzian Calder\'on problem when a family of Dirichlet-to-Neumann maps are given for an open set of magnetic/electromagnetic potentials. For the Riemannian version, by allowing small perturbations of the…

偏微分方程分析 · 数学 2025-12-19 Yuchao Yi
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