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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Determining the potential in a wave equation without a geometric condition. Extension to the heat equation
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by Kaïs Ammari, Mourad Choulli and Faouzi Triki PDF
Proc. Amer. Math. Soc. 144 (2016), 4381-4392 Request permission

Abstract:

We prove a logarithmic stability estimate for the inverse problem of determining the potential in a wave equation from boundary measurements obtained by varying the first component of the initial condition. The novelty of the present work is that no geometric condition is imposed to the sub-boundary where the measurements are made. Our results improve those obtained by the first and second authors in an earlier work. We also show how the analysis for the wave equation can be adapted to an inverse coefficient problem for the heat equation.
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Additional Information
  • Kaïs Ammari
  • Affiliation: UR Analysis and Control of Pde, UR 13ES64, Department of Mathematics, Faculty of Sciences of Monastir, University of Monastir, 5019 Monastir, Tunisia
  • MR Author ID: 661882
  • Email: kais.ammari@fsm.rnu.tn
  • Mourad Choulli
  • Affiliation: Institut Élie Cartan de Lorraine, UMR CNRS 7502, Université de Lorraine, Boulevard des Aiguillettes, BP 70239, 54506 Vandoeuvre les Nancy cedex - Ile du Saulcy, 57045 Metz cedex 01, France
  • Email: mourad.choulli@univ-lorraine.fr
  • Faouzi Triki
  • Affiliation: Laboratoire Jean Kuntzmann, UMR CNRS 5224, Université de Joseph Fourier, 38041 Grenoble Cedex 9, France
  • MR Author ID: 733264
  • Email: Faouzi.Triki@imag.fr
  • Received by editor(s): September 28, 2015
  • Received by editor(s) in revised form: December 19, 2015
  • Published electronically: April 20, 2016
  • Additional Notes: The third author was partially supported by Labex PERSYVAL-Lab (ANR-11-LABX-0025-01)
  • Communicated by: Joachim Krieger
  • © Copyright 2016 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 144 (2016), 4381-4392
  • MSC (2010): Primary 35R30
  • DOI: https://doi.org/10.1090/proc/13069
  • MathSciNet review: 3531187