Why is the Cauchy problem severely ill-posed?

FB Belgacem - Inverse problems, 2007 - iopscience.iop.org
An answer to the ill-posedness degree issue of the Cauchy problem may be found in the
theory of kernel operators. The foundation of the proof is the Steklov–Poincaré approach …

A modified collocation Trefftz method for the inverse Cauchy problem of Laplace equation

CS Liu - Engineering Analysis with Boundary Elements, 2008 - Elsevier
We consider an inverse problem for Laplace equation by recovering the boundary value on
an inaccessible part of a circle from an overdetermined data on an accessible part of that …

On Cauchy's problem: II. Completion, regularization and approximation

M Azaïez, FB Belgacem, H El Fekih - Inverse problems, 2006 - iopscience.iop.org
Abstract In Ben Belgacem and El Fekih (2005 On Cauchy's problem: I. A variational Steklov–
Poincaré theory Inverse Problems 21 1915–36), a new variational theory is introduced for …

On numerical approaches for solving an inverse cauchy stokes problem

H Ouaissa, A Chakib, A Nachaoui… - Applied Mathematics & …, 2022 - Springer
In this paper, we are interested in the study of an inverse Cauchy problem governed by
Stokes equation. It consists in determining the fluid velocity and the flux over a part of the …

Mathematical analysis and simulation of fixed point formulation of Cauchy problem in linear elasticity

A Ellabib, A Nachaoui, A Ousaadane - Mathematics and Computers in …, 2021 - Elsevier
In this work, an inverse problem in linear elasticity is considered, it is about reconstructing
the unknown boundary conditions on a part of the boundary based on the other boundaries …

Primal–dual weak Galerkin finite element methods for elliptic Cauchy problems

C Wang, J Wang - Computers & Mathematics with Applications, 2020 - Elsevier
The authors propose and analyze a well-posed numerical scheme for a type of ill-posed
elliptic Cauchy problem by using a constrained minimization approach combined with the …

Numerical estimation of the Robin coefficient in a stationary diffusion equation

B Jin, J Zou - IMA Journal of Numerical Analysis, 2010 - academic.oup.com
A finite-element method is proposed for the nonlinear inverse problem of estimating the
Robin coefficient in a stationary diffusion equation from boundary measurements of the …

Adaptive mesh techniques based on a posteriori error estimates for an inverse Cauchy problem

A Bergam, A Chakib, A Nachaoui… - Applied Mathematics and …, 2019 - Elsevier
We are interested by an alternating method for an inverse Cauchy problem. Our main results
of this paper consists in exhibiting local error indicators, based on a posteriori analysis, with …

[PDF][PDF] A highly accurate MCTM for inverse Cauchy problems of Laplace equation in arbitrary plane domains

CS Liu - CMES: Computer Modeling in Engineering & …, 2008 - cdn.techscience.cn
We consider the inverse Cauchy problems for Laplace equation in simply and doubly
connected plane domains by recoverning the unknown boundary value on an inaccessible …

Convergence study and regularizing property of a modified Robin–Robin method for the Cauchy problem in linear elasticity

A Ellabib, A Nachaoui, A Ousaadane - Inverse Problems, 2022 - iopscience.iop.org
In this paper, we are interested in solving a Cauchy inverse problem in linear elasticity. For
this, we propose a new method based on Robin conditions on the inaccessible boundary …