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  1. Home > Articles & Issues >
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  3. Inverse Problem: Sta ...
Article

Inverse Problem: Stability for the aligned magnetic field by the Dirichlet-to-Neumann map for the wave equation in a periodic quantum waveguide

Mejri Youssef (1) (2)
(1) Université de Tunis El Manar
(2) Tunis El Manar University [University of Tunis El Manar] [Tunisia] = Université de Tunis El Manar [Tunisie] = جامعة تونس المنار (ar)
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Submitted on
December 8, 2016
Accepted on
December 7, 2016
Published on
December 13, 2016
Last modified on
March 31, 2025
Special issue 23
Volume 23 - 2016 - Special issue for LEM2I 2016
DOI
10.46298/arima.1509
License
https://about.hal.science/hal-authorisation-v1
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Inverse Problem: Stability for the aligned magnetic field by the Dirichlet-to-Neumann map for the wave equation in a periodic quantum waveguide

Mejri Youssef (1) (2)
(1) Université de Tunis El Manar
(2) Tunis El Manar University [University of Tunis El Manar] [Tunisia] = Université de Tunis El Manar [Tunisie] = جامعة تونس المنار (ar)
Abstract
Dans ce papier, on a prouvé une estimation de stabilité pour le problème inverse de dé-termination du champ magnétique dans l'équation des ondes donné sur un domaine non borné à partir de l'opérateur de Dirichlet-to-Neumann. On a montré un résultat de stabilité pour ce problème inverse, dont la démonstration est basée sur la construction de solutions optique géométrique pour l'équation des ondes avec un potentiel magnétique 1-périodique. ABSTRACT. We consider the boundary inverse problem of determining the aligned magnetic field appearing in the magnetic wave equation in a periodic quantum cylindrical waveguide from boundary observations. The observation is given by the Dirichlet to Neumann map associated to the wave equation. We prove by means of the geometrical optics solutions of the magnetic wave equation that the knowledge of the Dirichlet-to-Neumann map determines uniquely the aligned magnetic field induced by a time independent and 1-periodic magnetic potential. We establish a Hölder-type stability estimate in the inverse problem.
Keywords
  • [MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP]
  • Inverse problem
  • Magnetic wave equation
  • Dirichlet-to-Neumann map
Mathematics Subject Classification 2020
  • 35L20 - Initial-boundary value problems for second-order hyperbolic equations
  • 35R30 - Inverse problems for PDEs
  • 78A25 - Electromagnetic theory (general)
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