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相关论文: Logarithmic stability in determining a boundary co…

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Stochastic parabolic equations are widely used to model many random phenomena in natural sciences, such as the temperature distribution in a noisy medium, the dynamics of a chemical reaction in a noisy environment, or the evolution of the…

偏微分方程分析 · 数学 2023-09-21 Zhonghua Liao , Qi Lü

In this paper we investigate the Bayesian approach to inverse Robin problems. These are problems for certain elliptic boundary value problems of determining a Robin coefficient on a hidden part of the boundary from Cauchy data on the…

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 establish a link between stability estimates for a hyperbolic inverse problem via the Boundary Control method and the blowup of a constant appearing in the contexts of optimal unique continuation and cost of approximate controllability.

偏微分方程分析 · 数学 2025-03-11 Spyridon Filippas , Lauri Oksanen

The paper aims a logarithmic stability estimate for the inverse source problem of the one-dimensional Helmholtz equation with attenuation factor in a two layer medium. We establish a stability by using multiple frequencies at the two end…

偏微分方程分析 · 数学 2019-11-05 Mozhgan Nora Entekhabi , Ajith Gunaratne

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 article addresses the inverse problem of simultaneously recovering both the wave speed coefficient and an unknown initial condition (acting as the source) for the multidimensional wave equation from a single passive boundary…

偏微分方程分析 · 数学 2025-07-29 Yavar Kian , Hongyu Liu

We study the inverse boundary value problems of determining a potential in the Helmholtz type equation for the perturbed biharmonic operator from the knowledge of the partial Cauchy data set. Our geometric setting is that of a domain whose…

偏微分方程分析 · 数学 2020-07-13 Boya Liu

In this paper, we consider the Stokes equations and we are concerned with the inverse problem of identifying a Robin coefficient on some non accessible part of the boundary from available data on the other part of the boundary. We first…

偏微分方程分析 · 数学 2013-05-07 Muriel Boulakia , Anne-Claire Egloffe , Celine Grandmont

We study an inverse problem involving the restoration of two radiative potentials, not necessarily smooth, simultaneously with initial temperatures in parabolic equations with dynamic boundary conditions. We prove a Lipschitz stability…

偏微分方程分析 · 数学 2021-05-06 E. M. Ait Ben Hassi , S. E. Chorfi , L. Maniar

Non-linear entropy stability and a summation-by-parts framework are used to derive entropy stable wall boundary conditions for the three-dimensional compressible Navier--Stokes equations. A semi-discrete entropy estimate for the entire…

流体动力学 · 物理学 2015-06-23 Matteo Parsani , Mark H. Carpenter , Eric J. Nielsen

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

In this work, we present some new Carleman inequalities for Stokes and Oseen equations with non-homogeneous boundary conditions. These estimates lead to log type stability inequalities for the problem of recovering the solution of the…

偏微分方程分析 · 数学 2022-07-19 Mehdi Badra , Fabien Caubet , Jérémi Dardé

In this paper, we study the stability of the inverse conductivity problem of determining a convex polyhedral inclusion embedded in a homogeneous isotropic medium from a single boundary measurement. The main tools in our analysis are…

偏微分方程分析 · 数学 2026-05-19 Chun-Hsiang Tsou

This paper proposes a new mathematical formulation for flow measurement based on the inverse source problem for wave equations with partial boundary measurement. Inspired by the design of acoustic Doppler current profilers (ADCPs), we…

最优化与控制 · 数学 2025-03-19 Jiwei Li , Lingyun Qiu , Zhongjing Wang , Hui Yu

We establish sharp stability estimates of logarithmic type in determining an impedance obstacle in $\mathbb{R}^2$. The obstacle is of general polygonal shape and the impedance parameter can be variable. We establish the stability results by…

偏微分方程分析 · 数学 2023-05-16 Huaian Diao , Hongyu Liu , Longyue Tao

In this article, for the radiative transport equation, we study inverse problems of determining a time independent scattering coefficient or total attenuation by boundary data on the complementary sub-boundary after making one time input of…

偏微分方程分析 · 数学 2013-07-30 Manabu Machida , Masahiro Yamamoto

In this paper, we consider the inverse boundary value problem for the polyharmonic operator. We prove that the second order perturbations are uniquely determined by the corresponding Dirichlet to Neumann map. More precisely, we show in…

偏微分方程分析 · 数学 2022-09-27 Nesrine Aroua , Mourad Bellassoued

In this paper we study the inverse problem of identifying a source or an initial state in a time-fractional diffusion equation from the knowledge of a single boundary measurement. We derive logarithmic stability estimates for both…

偏微分方程分析 · 数学 2021-12-22 Yavar Kian , Eric Soccorsi , Faouzi Triki

This paper is devoted to the exponential stability for one-dimensional linear wave equations with in-domain localized damping and several types of Wentzell (or dynamic) boundary conditions. In a quite general boundary setting, we establish…

偏微分方程分析 · 数学 2025-03-31 Abdelhakim Dahmani , Yacine Chitour , Hoai-Minh Nguyen , Christophe Roman