An inverse problem for a hyperbolic system in a bounded domain

Cardoulis, Laure

Comptes Rendus. Mathématique, Tome 361 (2023) no. G3, pp. 653-665

In this Note we consider a two-by-two hyperbolic system defined on a bounded domain. Using Carleman inequalities, we obtain a Lipschitz stability result for the four spatially varying coefficients with measurements of only one component, given two sets of initial conditions.

Dans cette Note, on considère un système hyperbolique de deux équations, défini dans un domaine borné. En utilisant la méthode des inégalités de Carleman, on obtient un résultat de stabilité Lipschitz pour les quatre coefficients dépendant de la variable d’espace de ce système, avec des mesures d’une seule composante de la solution et grâce à la donnée de deux ensembles de conditions initiales.

Classification : 35R30

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