中文
相关论文

相关论文: New Stability Estimates for the Inverse Medium Pro…

200 篇论文

In this paper, we show the increasing stability of the inverse source problems for the acoustic wave equation in the full space R3.The goal is to understand increasing stability for wave equation in the time domain. If the time and spatial…

偏微分方程分析 · 数学 2024-11-08 Suliang Si

This paper concerns the inverse source problems for the time-harmonic elastic and electromagnetic wave equations. The goal is to determine the external force and the electric current density from boundary measurements of the radiated wave…

偏微分方程分析 · 数学 2018-08-17 Gang Bao , Peijun Li , Yue Zhao

In this work we study the inverse boundary value problem of determining the refractive index in the acoustic equation. It is known that this inverse problem is ill-posed. Nonetheless, we show that the ill-posedness decreases when we…

偏微分方程分析 · 数学 2011-10-25 Sei Nagayasu , Gunther Uhlmann , Jenn-Nan Wang

The solution of a multi-frequency 1d inverse medium problem consists of recovering the refractive index of a medium from measurements of the scattered waves for multiple frequencies. In this paper, rigorous stability estimates are derived…

偏微分方程分析 · 数学 2020-03-31 Gang Bao , Faouzi Triki

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

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 establishes Lipschitz stability for the simultaneous recovery of a variable density coefficient and the initial displacement in a damped biharmonic wave equation. The data consist of the boundary Cauchy data for the Laplacian of…

偏微分方程分析 · 数学 2026-05-18 Minghui Bi , Yixian Gao

This paper investigates stability estimates for inverse source problems in the stochastic polyharmonic wave equation, where the source is represented by white noise. The study examines the well-posedness of the direct problem and derives…

偏微分方程分析 · 数学 2024-10-15 Peijun Li , Zhenqian Li , Ying Liang

Using uniform global Carleman estimates for discrete elliptic and semi-discrete hyperbolic equations, we study Lipschitz and logarithmic stability for the inverse problem of recovering a potential in a semi-discrete wave equation,…

偏微分方程分析 · 数学 2014-09-29 Lucie Baudouin , Sylvain Ervedoza , Axel Osses

This paper focuses on stability estimates of the inverse random source problems for the polyharmonic, electromagnetic, and elastic wave equations. The source is represented as a microlocally isotropic Gaussian random field, which is defined…

偏微分方程分析 · 数学 2024-10-11 Peijun Li , Ying Liang , Xu Wang

This paper is concerned with the inverse problem to recover the scalar, complex-valued refractive index of a medium from measurements of scattered time-harmonic electromagnetic waves at a fixed frequency. The main results are two…

数值分析 · 数学 2017-02-09 Frederic Weidling , Thorsten Hohage

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 inverse boundary value problem for the Helmholtz equation using the Dirichlet-to-Neumann map at selected frequencies as the data. A conditional Lipschitz stability estimate for the inverse problem holds in the case of…

偏微分方程分析 · 数学 2019-06-05 Elena Beretta , Maarten V. de Hoop , Florian Faucher , Otmar Scherzer

This paper is concerned with the stability of the inverse source problem for the damped biharmonic plate equation in three dimensions. The stability estimate consists of the Lipschitz type data discrepancy and the high frequency tail of the…

偏微分方程分析 · 数学 2021-03-02 Peijun Li , Xiaohua Yao , Yue Zhao

In this paper, we investigate an inverse random source problem concerned with recovering the strength of a random, uncorrelated acoustic source from correlation measurements of emitted time-harmonic acoustic waves. Such problems arise in…

数值分析 · 数学 2026-02-25 Philipp Mickan , Thorsten Hohage

We prove a local Lipschitz stability estimate for Gel'fand-Calder\'on's inverse problem for the Schr\"odinger equation. The main novelty is that only a finite number of boundary input data is available, and those are independent of the…

偏微分方程分析 · 数学 2020-04-21 Giovanni S. Alberti , Matteo Santacesaria

Consider the one-dimensional stochastic Helmholtz equation where the source is assumed to be driven by the white noise. This paper concerns the stability analysis of the inverse random source problem which is to reconstruct the statistical…

偏微分方程分析 · 数学 2016-07-25 Peijun Li , Ganghua Yuan

We present stability estimates for the inverse source problem of the stochastic Helmholtz equation in two and three dimensions by either near-field or far-field data. The random source is assumed to be a microlocally isotropic generalized…

偏微分方程分析 · 数学 2024-03-21 Tianjiao Wang , Xiang Xu , Yue Zhao

In this paper, we study an inverse problem for linear parabolic system with variable diffusion coefficients subject to dynamic boundary conditions. We prove a global Lipschitz stability for the inverse problem involving a simultaneous…

偏微分方程分析 · 数学 2022-01-04 E. M. Ait Ben Hassi , S. E. Chorfi , L. Maniar , O. Oukdach

We study increasing stability in the inverse source problems for the Helmholtz equation and the classical Lame system from (minimal) boundary data at multiple wave numbers. By using the Fourier transform with respect to wave numbers,…

偏微分方程分析 · 数学 2018-09-03 Mozhgan Nora Entrekhabi , Victor Isakov
‹ 上一页 1 2 3 10 下一页 ›