Robust numerical algorithms based on analytic approximation for the solution of inverse problems in annular domains

Mohamed Jaoua; Juliette Leblond; Moncef Mahjoub; Jonathan Partington

inria-00258512, version 2

Robust numerical algorithms based on analytic approximation for the solution of inverse problems in annular domains

Mohamed Jaoua ¹, Juliette Leblond () ², Moncef Mahjoub ³, Jonathan Partington ⁴

N° RR-6456 (2008)

Abstract: We consider the Cauchy problem of recovering both Neumann and Dirichlet data on the inner part of the boundary of an annular domain, from measurements of a harmonic function on some part of the outer boundary. The ultimate goal is to compute the impedance or Robin coefficient, which is the quotient of these extended data, on the inner boundary. This impedance gives information on the location and extent of a possible corroded area in the internal wall of the domain. Using tools from complex analysis and best approximation in Hardy classes, we present constructive and robust identification schemes validated by a thorough numerical study.

1: Laboratoire Jean Alexandre Dieudonné (JAD)
CNRS : UMR6621 – Université Nice Sophia Antipolis [UNS]
2: APICS (INRIA Sophia Antipolis)
INRIA
3: Ecole Nationale d'Ingénieurs de Tunis (ENIT)
Ecole Nationale d'Ingénieurs de Tunis
4: School of Computing [Leeds]
University of Leeds

inria-00258512, version 2
http://hal.inria.fr/inria-00258512
oai:hal.inria.fr:inria-00258512
From: Rapport De Recherche Inria <>
Submitted on: Thursday, 28 February 2008 11:57:44
Updated on: Thursday, 28 February 2008 11:58:04

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