Journal
JOURNAL OF DIFFERENTIAL EQUATIONS
Volume 372, Issue -, Pages 564-590Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jde.2023.07.001
Keywords
Inverse problems; Global Lipschitz stability; Wave equations; Lorentzian manifolds; Carleman estimates
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We prove global Lipschitz stability for an inverse source problem of a system of wave equations on a Lorentzian manifold. The conventional method is not sufficient for the application to obtain the Lipschitz stability for the hyperbolic partial differential equation with time-dependent coefficients, and further innovations are needed. In this paper, we present an improved global Carleman estimate and an energy estimate to obtain the Lipschitz stability.
We prove global Lipschitz stability for an inverse source problem of a system of wave equations on a Lorentzian manifold. The method used in this paper is widely known as the Bukhgeim-Klibanov method. However, the conventional method is not sufficient for the application to the hyperbolic partial differential equation with time-dependent coefficients to obtain the Lipschitz stability, and further innovations are needed. In this paper, we present an improved global Carleman estimate and an energy estimate to obtain the Lipschitz stability.& COPY; 2023 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/).
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