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This paper considers the initial-boundary value problem for the heat equation with a dynamic type boundary condition. Under some regularity, consistency and orthogonality conditions, the existence, uniqueness and continuous dependence upon…

数学物理 · 物理学 2013-06-21 Nazim B. Kerimov , Mansur I. Ismailov

An inverse problem for the wave equation outside an obstacle with a {\it dissipative boundary condition} is considered. The observed data are given by a single solution of the wave equation generated by an initial data supported on an open…

偏微分方程分析 · 数学 2016-07-22 Masaru Ikehata

We address the initial source identification problem for the heat equation, a notably ill-posed inverse problem characterized by exponential instability. Departing from classical Tikhonov regularization, we propose a novel approach based on…

数值分析 · 数学 2026-01-15 Kang Liu , Enrique Zuazua

In this article, for an advection-diffusion equation we study an inverse problem for restoration of source temperature from the information of final temperature profile. The uniqueness of this inverse problem is established by taking an…

偏微分方程分析 · 数学 2018-06-15 Zhiyuan Li , Gongsheng Li , Xianzheng Jia

In this work the authors consider the recovery of the point source in the heat equation. The used data is the sparse boundary measurements. The uniqueness theorem of the inverse problem is given. After that, the numerical reconstruction is…

数值分析 · 数学 2025-02-06 Qiling Gu , Wenlong Zhang , Zhidong Zhang

This article is devoted to inverse problems of recovering point sources in mathematical models of heat and mass transfer. The main attention is paid to well-posedness questions of these inverse problems with pointwise overdetermination…

偏微分方程分析 · 数学 2023-09-01 Sergey Pyatkov , Lyubov Neustroeva

This paper gives a note on an application of the enclosure method to an inverse obstacle scattering problem governed by the Helmholtz equation in two dimensions. It is shown that one can uniquely determine the convex hull of an unknown…

偏微分方程分析 · 数学 2011-09-21 Masaru Ikehata

This paper deals with the numerical methods for the reconstruction of source term in linear parabolic equation from final overdetermination. We assume that the source term has the form f(x)h(t) and h(t) is given, which guarantees the…

偏微分方程分析 · 数学 2014-02-19 Xiaoping Fang , Youjun Deng , Jing Li

Inverse scattering transform method of the heat equation is developed for a special subclass of potentials nondecaying at space infinity---perturbations of the one-soliton potential by means of decaying two-dimensional functions. Extended…

可精确求解与可积系统 · 物理学 2009-11-07 M. Boiti , F. Pempinelli , A. K. Pogrebkov , B. Prinari

This paper considers the inverse problem of identifying the source term of parabolic equations from sparse boundary measurements. We used data from moving sensors to locate the unknown source term. This work first proves the uniqueness of…

偏微分方程分析 · 数学 2026-04-14 Qiling Gu , Wenlong Zhang , Zhidong Zhang

The one-dimensional problem of the nonlinear heat equation is considered. We assume that the heat flow in the origin of coordinates is the power function of time and the initial temperature is zero. Approximate solutions of the problem are…

数学物理 · 物理学 2007-05-23 Mikhail A. Chmykhov , Nikolai A. Kudryashov

We discuss inverse problems of determining the time-dependent source coefficient for a general class of subelliptic heat equations. We show that a single data at an observation point guarantees the existence of a (smooth) solution pair for…

偏微分方程分析 · 数学 2023-06-02 Mansur I. Ismailov , Tohru Ozawa , Durvudkhan Suragan

In this work we investigate the inverse problem of recovering one point source in the heat equation from sparse boundary measurement, i.e., the flux data at several points on the boundary. We prove the unique recovery of the location and…

偏微分方程分析 · 数学 2026-03-11 Fangyu Gong , Bangti Jin , Yavar Kian , Sizhe Liu

We consider the inverse source problem in the parabolic equation, where the unknown source possesses the semi-discrete formulation. Theoretically, we prove that the flux data from any nonempty open subset of the boundary can uniquely…

数值分析 · 数学 2022-11-23 Guang Lin , Zecheng Zhang , Zhidong Zhang

In this paper, a boundary integral method is used to solve an inverse linear heat conduction problem in two-dimensional bounded domain. An inverse problem of measuring the heat flux from partial (on part of the boundary) dynamic boundary…

数学物理 · 物理学 2008-05-06 Daveau Christian , Khelifi Abdessatar , Shamma M. Nour

The present manuscript consists of inverse problems for a coupled system of wave equations with potential in $\mathbb{R}^3$. By establishing the fundamental solution to the aforementioned operator, we study the uniqueness aspects of the…

偏微分方程分析 · 数学 2026-04-09 Rahul Bhardwaj , Manmohan Vashisth

This paper considerers the problem of computing the value of a solution of the heat equation at a given point inside a bounded domain after the initial time. It is assumed that the initial value of the solution inside the domain (possibly…

偏微分方程分析 · 数学 2010-02-02 Masaru Ikehata

A standard inverse problem is to determine a source which is supported in an unknown domain $D$ from external boundary measurements. Here we consider the case of a time-dependent situation where the source is equal to unity in an unknown…

数值分析 · 数学 2019-04-08 William Rundell , Zhidong Zhang

Four problems about recovery of a high-frequency source in the one-dimension heat equation with homogeneous initial-boundary conditions by some information about partial asymptotic of its solution have solved. It is shown, that the source…

偏微分方程分析 · 数学 2017-04-19 Pavel V. Babich , Valeriy B. Levenshtam , Sergey P. Prika

We consider the inverse problem of recovering a potential by measuring the response at a point to a source located at the same point and then varying the point on the surface of a sphere. This is a similar to the inverse back-scattering…

偏微分方程分析 · 数学 2014-03-10 Rakesh , Gunther Uhlmann