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We consider the problem of recovering a nonlinear potential function in a nonlinear Schr\"odinger equation on transversally anisotropic manifolds from the linearized Dirichlet-to-Neumann map at a large wavenumber. By calibrating the complex…

偏微分方程分析 · 数学 2023-01-20 Shuai Lu , Jian Zhai

We develop a linearized boundary control method for the inverse boundary value problem of determining the damping coefficient in the damped wave equation. The objective is to reconstruct an unknown perturbation in a known background damping…

偏微分方程分析 · 数学 2026-03-11 Tianyu Yang , Yang Yang

This paper is concerned with the stability estimates for inverse source problems of the stochastic Helmholtz equation driven by white noise. The well-posedness is established for the direct source problems, which ensures the existence and…

偏微分方程分析 · 数学 2023-07-14 Peijun Li , Ying Liang

This paper concerns an inverse boundary value problem of recovering a zeroth order time-dependent term of a semi-linear wave equation on a globally hyperbolic Lorentzian manifold. We show that an unknown potential $q$ in the non-linear wave…

偏微分方程分析 · 数学 2025-05-14 Matti Lassas , Tony Liimatainen , Leyter Potenciano-Machado , Teemu Tyni

In the paper, we study the problem of recovering the Sturm--Liouville operator with frozen argument from its spectrum and additional data. For this inverse problem, we establish a substantial property of the uniform stability, which…

谱理论 · 数学 2023-07-06 Maria Kuznetsova

In this paper, we present a refined approach to establish a global Lipschitz stability for an inverse source problem concerning the determination of forcing terms in the wave equation with mixed boundary conditions. It consists of boundary…

偏微分方程分析 · 数学 2026-02-06 S. E. Chorfi , G. El Guermai , L. Maniar , W. Zouhair

We study the stability of an inverse problem for the fractional conductivity equation on bounded smooth domains. We obtain a logarithmic stability estimate for the inverse problem under suitable a priori bounds on the globally defined…

偏微分方程分析 · 数学 2024-09-10 Giovanni Covi , Jesse Railo , Teemu Tyni , Philipp Zimmermann

A major problem in solving multi-waves inverse problems is the presence of critical points where the collected data completely vanishes. The set of these critical points depend on the choice of the boundary conditions, and can be directly…

偏微分方程分析 · 数学 2015-11-11 Mourad Choulli , Faouzi Triki

We establish a Lipschitz stability inequality for the problem of determining the nonlinear term in a quasilinear elliptic equation by boundary measurements. We give a proof based on a linearization procedure together with special solutions…

偏微分方程分析 · 数学 2022-11-28 Mourad Choulli

In this paper we prove stability estimates of logarithmic type for an inverse problem consisting in the determination of unknown portions of the boundary of a domain in $\mathbb{R}^n$, from a knowledge, in a finite time observation, of…

偏微分方程分析 · 数学 2014-07-03 Sergio Vessella

This paper is concerned with inverse source problems for the acoustic wave equation in the full space R^3, where the source term is compactly supported in both time and spatial variables. The main goal is to investigate increasing stability…

偏微分方程分析 · 数学 2024-03-14 Chun Liu , Suliang Si , Guanghui Hu , Bo Zhang

In this paper, we analyze the properties of invertible neural networks, which provide a way of solving inverse problems. Our main focus lies on investigating and controlling the Lipschitz constants of the corresponding inverse networks.…

机器学习 · 计算机科学 2021-09-01 Paul Hagemann , Sebastian Neumayer

In this work we consider stability of recovery of the conductivity and attenuation coefficients of the stationary Maxwell and Schr\"odinger equations from a complete set of (Cauchy) boundary data. By using complex geometrical optics…

偏微分方程分析 · 数学 2015-05-04 Ru-Yu Lai , Victor Isakov , Jenn-Nan Wang

We derive conditional stability estimates for inverse scattering problems related to time harmonic magnetic Schr\"odinger equation. We prove logarithmic type estimates for retrieving the magnetic (up to a gradient) and electric potentials…

偏微分方程分析 · 数学 2022-03-03 Mourad Bellassoued , Houssem Haddar , Amal Labidi

We give an instability estimate for the Gel'fand inverse boundary value problem at high energies. Our instability estimate shows an optimality of several important preceeding stability results on inverse problems of such a type.

偏微分方程分析 · 数学 2013-06-27 Mikhail Isaev

We derive some bounds which can be viewed as an evidence of increasing stability in the problem of recovering the potential coefficient in the Schr\"odinger equation from the Dirichlet-to-Neumann map in the presence of attenuation, when…

偏微分方程分析 · 数学 2013-09-12 Victor Isakov , Jenn-Nan Wang

We are interested in an inverse medium problem with internal data. This problem is originated from multi-waves imaging. We aim in the present work to study the well-posedness of the inversion in terms of the boundary conditions. We…

偏微分方程分析 · 数学 2018-06-12 Mourad Choulli , Faouzi Triki

In this note we reprove the Lipschitz stability for the inverse problem for the Schr\"odinger operator with finite-dimensional potentials by using quantitative Runge approximation results. This provides a quantification of the Schr\"odinger…

偏微分方程分析 · 数学 2020-02-24 Angkana Rüland , Eva Sincich

We establish stability inequalities of an inverse obstacle problem for the magnetic Schr\"odinger equation. We mainly study the problem of reconstructing an unknown function defined on the obstacle boundary from two measurements performed…

偏微分方程分析 · 数学 2024-11-26 Mourad Choulli , Hiroshi Takase

In this article, we investigate both forward and backward problems for coupled systems of time-fractional diffusion equations, encompassing scenarios of strong coupling. For the forward problem, we establish the well-posedness of the…

偏微分方程分析 · 数学 2025-08-19 Dian Feng , Yikan Liu , Shuai Lu