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相关论文: Stability for time-dependent inverse transport

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This work considers a time domain inverse acoustic obstacle scattering problem due to passive data. Motivated by the Helmholtz-Kirchhoff identity in the frequency domain, we propose to relate the time domain measurement data in passive…

数值分析 · 数学 2025-06-03 Xiaoli Liu , Shixu Meng , Jialu Tian , Bo Zhang

This paper is devoted to the reconstruction of the time and space-dependent coefficient in an infinite cylindrical hyperbolic domain. Using a local Carleman estimate we prove the uniqueness and a H\"older stability in the determining of the…

偏微分方程分析 · 数学 2016-07-07 L. Beilina , M. Cristofol , S. Li

Three papers describing different methods to solve the inverse scattering problem of the reconstruction of the shape and/or impedance of an obstacle have been chosen for analysis. This literature review consists of an evaluation of these…

数值分析 · 数学 2022-11-14 Sarika Karanth , Shobha M. Erappa

In this paper, we study an inverse problem of determining the cross section of an infinitely long cylindrical-like material structure from the transverse electromagnetic scattering measurement. We establish a sharp logarithmic stability…

偏微分方程分析 · 数学 2022-02-24 Hongyu Liu , Chun-Hsiang Tsou

We consider the inverse scattering problem on the energy interval in three dimensions. We are focused on stability and instability questions for this problem. In particular, we prove an exponential instability estimate which shows…

偏微分方程分析 · 数学 2010-12-30 Mikhail Isaev

We consider optimal design of infinite-dimensional Bayesian linear inverse problems governed by partial differential equations that contain secondary reducible model uncertainties, in addition to the uncertainty in the inversion parameters.…

最优化与控制 · 数学 2020-06-23 Alen Alexanderian , Noemi Petra , Georg Stadler , Isaac Sunseri

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

Recent advances in stochastic differential equations (SDEs) have enabled robust modeling of real-world dynamical processes across diverse domains, such as finance, health, and systems biology. However, parameter estimation for SDEs…

机器学习 · 计算机科学 2026-01-29 Long Van Tran , Truyen Tran , Phuoc Nguyen

We propose a new approach to linear ill-posed inverse problems. Our algorithm alternates between enforcing two constraints: the measurements and the statistical correlation structure in some transformed space. We use a non-linear multiscale…

计算工程、金融与科学 · 计算机科学 2018-12-04 Ivan Dokmanić , Joan Bruna , Stéphane Mallat , Maarten de Hoop

This paper concerns the reconstruction of multiple elastic parameters (Lam\'e parameters and density) of an inhomogeneous medium embedded in an infinite homogeneous isotropic background in $\mathbb{R}^2$. The direct scattering problem is…

数值分析 · 数学 2019-02-13 Gang Bao , Tao Yin , Fang Zeng

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

We consider the relativistic Schr\"odinger equation with a time dependent vector and scalar potential on a bounded cylindrical domain. Using a Geometric Optics Ansatz we establish a logarithmic stability estimate for the recovery of the…

偏微分方程分析 · 数学 2014-06-19 Ricardo Salazar

The aim of this paper is to study the feasibility of time-reversal methods in a non homogeneous elastic medium, from data recorded in an acoustic medium. We aim to determine, from partial aperture boundary measurements, the presence and…

数值分析 · 数学 2020-10-28 Franck Assous , Moshe Lin

We study the inverse source problem for a class of viscoelastic systems from a single boundary measurement in a general spatial dimension. We give specific reconstruction formula and stability estimate for the source in terms of the…

偏微分方程分析 · 数学 2020-04-24 Walton Green , Shitao Liu

In this paper, we consider the inverse problem of recovering a diffusion and absorption coefficients in steady-state optical tomography problem from the Neumann-to-Dirichlet map. We first prove a Global uniqueness and Lipschitz stability…

偏微分方程分析 · 数学 2020-12-21 Houcine Meftahi

In this article we are interested in the boundary stabilization in finite time of one-dimensional linear hyperbolic balance laws with coefficients depending on time and space. We extend the so called "backstepping method" by introducing…

最优化与控制 · 数学 2020-11-30 Jean-Michel Coron , Long Hu , Guillaume Olive , Peipei Shang

Previous work has established that the localized regime of wave transport in open media is characterized by a position-dependent diffusion coefficient. In this work we study how the concept of position-dependent diffusion affects the delay…

无序系统与神经网络 · 物理学 2017-05-24 B. A. van Tiggelen , S. E. Skipetrov , J. H. Page

We consider the problem of adaptive stabilization for discrete-time, multi-dimensional linear systems with bounded control input constraints and unbounded stochastic disturbances, where the parameters of the true system are unknown. To…

系统与控制 · 电气工程与系统科学 2023-04-04 Seth Siriya , Jingge Zhu , Dragan Nešić , Ye Pu

This paper is concerned with the mathematical analysis of time-dependent fluid-solid interaction problem associated with a bounded elastic body immersed in a homogeneous air or fluid above a local rough surface. We reformulate the unbounded…

偏微分方程分析 · 数学 2018-07-25 Changkun Wei , Jiaqing Yang

We study the propagation of elastic waves in the time-harmonic regime in a waveguide which is unbounded in one direction and bounded in the two other (transverse) directions. We assume that the waveguide is thin in one of these transverse…

偏微分方程分析 · 数学 2025-10-13 Laurent Bourgeois , Lucas Chesnel , Sonia Fliss