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Journal of Applied Mathematics and Computing

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06-01-2021 | Original Research

Augmented Lagrangian approach for a bilateral free boundary problem

Authors: Youness El Yazidi, Abdellatif Ellabib

Published in: Journal of Applied Mathematics and Computing | Issue 1-2/2021

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Abstract

In this work, a class of bilateral free boundary problem is considered. This identification problem is formulated as a shape optimization problem via the definition of a cost functional. The existence of an optimal solution for the optimization problem is proved. An augmented Lagrangian approach is used to facilitate the computation of the shape derivatives. A numerical approach is proposed to solve iteratively the shape optimization problem, also we prove its convergence. Various type of domains are investigated to confirm the validity of the presented approach. For the numerical stability we investigate the shape without and with noisy data.

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Title: Augmented Lagrangian approach for a bilateral free boundary problem
Authors: Youness El Yazidi
Abdellatif Ellabib
Publication date: 06-01-2021
Publisher: Springer Berlin Heidelberg
Published in: Journal of Applied Mathematics and Computing / Issue 1-2/2021
Print ISSN: 1598-5865
Electronic ISSN: 1865-2085
DOI: https://doi.org/10.1007/s12190-020-01472-y

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