Control theory
Uniqueness theorem for a coupled system of wave equations with incomplete internal observation and application to approximate controllability
Comptes Rendus. Mathématique, Volume 360 (2022), pp. 729-737.

We show that a Kalman rank condition is necessary and sufficient for the uniqueness of solution to a system of wave equations associated with incomplete internal observation without any restriction neither on the controlled subregion nor on the coupling matrices. The obtained result can be applied to the approximate internal controllability of the corresponding system.

Accepted:
Published online:
DOI: 10.5802/crmath.341
Tatsien Li 1; Bopeng Rao 2

1 Shanghai Key Laboratory for Contemporary Applied Mathematics; Nonlinear Mathematical Modeling and Methods Laboratory, School of Mathematical Sciences, Fudan University, Shanghai 200433, China
2 Institut de Recherche Mathématique Avancée, Université de Strasbourg, 67084 Strasbourg, France
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Tatsien Li; Bopeng Rao. Uniqueness theorem for a coupled system of wave equations with incomplete internal observation and application to approximate controllability. Comptes Rendus. Mathématique, Volume 360 (2022), pp. 729-737. doi : 10.5802/crmath.341. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.341/

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