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We study the uniqueness question for two inverse problems on graphs. Both problems consist in finding (possibly complex) edge or nodal based quantities from boundary measurements of solutions to the Dirichlet problem associated with a…

组合数学 · 数学 2015-10-13 Justin Boyer , Jack J. Garzella , Fernando Guevara Vasquez

This paper is devoted to the inverse problem of recovering simultaneously a potential and a point source in a Shr\"odinger equation from the associated nonlinear Dirichlet to Neumann map. The uniqueness of the inversion is proved and…

偏微分方程分析 · 数学 2020-02-24 Gang Bao , Yuantong Liu , Faouzi Triki

We study the inverse Sturm-Liouville problem on a finite interval from partial knowledge of spectral data. Specifically, we show that the potential can be uniquely reconstructed from the knowledge of a fraction of Dirichlet eigenvalues…

偏微分方程分析 · 数学 2026-03-30 Ali Feizmohammadi , Yavar Kian

The discrete Schr\"odinger equation with the Dirichlet boundary condition is considered on a half-line lattice when the potential is real valued and compactly supported. The inverse problem of recovery of the potential from the so-called…

谱理论 · 数学 2018-05-22 Tuncay Aktosun , Vassilis G. Papanicolaou

In the paper we propose a direct method for recovering the Sturm-Liouville potential from the Weyl-Titchmarsh $m$-function given on a countable set of points. We show that using the Fourier-Legendre series expansion of the transmutation…

经典分析与常微分方程 · 数学 2021-07-07 Vladislav V. Kravchenko , Sergii M. Torba

We consider the inverse problems of for the fractional Schr\"odinger equation by using monotonicity formulas. We provide if-and-only-if monotonicity relations between positive bounded potentials and their associated nonlocal…

偏微分方程分析 · 数学 2019-08-02 Bastian Harrach , Yi-Hsuan Lin

We study an inverse problem for fractional elasticity. In analogy to the classical problem of linear elasticity, we consider the unique recovery of the Lam\'e parameters associated to a linear, isotropic fractional elasticity operator from…

偏微分方程分析 · 数学 2022-10-03 Giovanni Covi , Maarten de Hoop , Mikko Salo

We consider the dynamical system with boundary control for the vector Schr\"odinger equation on the interval with a non-self-adjoint matrix potential. For this system, we study the inverse problem of recovering the matrix potential from the…

偏微分方程分析 · 数学 2025-05-12 Sergei Avdonin , Alexander Mikhaylov , Victor Mikhaylov , Jeff Park

In this paper, we numerically investigate an inverse problem of recovering the potential term in a fractional Sturm-Liouville problem from one spectrum. The qualitative behaviors of the eigenvalues and eigenfunctions are discussed, and…

数值分析 · 数学 2015-06-04 Bangti Jin , William Rundell

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

A variety of inverse Sturm-Liouville problems is considered, including the two-spectrum inverse problem, the problem of recovering the potential from the Weyl function, as well as the recovery from the spectral function. In all cases the…

经典分析与常微分方程 · 数学 2025-06-03 Vladislav V. Kravchenko

We study the problem of finding the resistors in a resistor network from measurements of the power dissipated by the resistors under different loads. We give sufficient conditions for local uniqueness, i.e. conditions that guarantee that…

偏微分方程分析 · 数学 2024-07-22 Marcus Corbett , Fernando Guevara Vasquez , Alexander Royzman , Guang Yang

We prove that an $L^\infty$ potential in the Schr\"odinger equation in three and higher dimensions can be uniquely determined from a finite number of boundary measurements, provided it belongs to a known finite dimensional subspace…

偏微分方程分析 · 数学 2019-10-10 Giovanni S. Alberti , Matteo Santacesaria

In present article the self-contained derivation of eigenvalue inverse problem results is given by using a discrete approximation of the Schroedinger operator on a bounded interval as a finite three-diagonal symmetric Jacobi matrix. This…

数学物理 · 物理学 2009-11-10 Vladimir M. Chabanov , Boris N. Zakhariev

We relax the regularity condition on potentials of Schr\"odinger equations in the uniqueness results in \cite{EB} and \cite{IY2} for the inverse boundary value problem of determining a potential by Dirichlet-to-Neumann map.

数学物理 · 物理学 2012-08-21 Oleg Yu. Imanuvilov , Masahiro Yamamoto

In the paper, we study the problem of recovering the potential from the spectrum of the Dirichlet boundary value problem for a Sturm--Liouville equation with frozen argument on a closed set. We consider the case when the closed set consists…

谱理论 · 数学 2024-04-12 Maria Kuznetsova

For the two dimensional Schr\"odinger equation in a bounded domain, we prove uniqueness of determination of potentials in $W^1_p(\Omega),\,\, p>2$ in the case where we apply all possible Neumann data supported on an arbitrarily non-empty…

数学物理 · 物理学 2012-10-05 O. Imanuvilov , G. Uhlmann , M. Yamamoto

We introduce a numerical framework for reconstructing the potential in two dimensional semilinear elliptic PDEs with power type nonlinearities from the nonlinear Dirichlet to Neumann map. By applying higher order linearization method, we…

数值分析 · 数学 2025-12-19 Khaoula El Maddah , Matti Lassas , Teemu Tyni

This paper develops a methodological framework for addressing a novel and application-oriented inverse nodal problem in Sturm-Liouville operators, having significant applications in seismic wave analysis and submarine underwater radar…

经典分析与常微分方程 · 数学 2025-06-27 Yuchao He , Mengda Wu , Yonghui Xia , Meirong Zhang

In this study, inverse nodal problem is solved for p-Laplacian Schr\"odinger equation with energy-dependent potential with the Drichlet conditions. Asymptotic estimates of eigenvalues, nodal points and nodal lengths are given by using…

谱理论 · 数学 2013-02-15 Hikmet Kemaloglu
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