Un théorème de Borg-Levinson asymptotique
Eric Soccorsi
CPT, Aix-Marseillle Université
https://eric-soccorsi.pedaweb.univ-amu.fr/
Date(s) : 23/11/2015 iCal
10h00 - 11h00
An asymptotic Borg-Levinson theorem
The most classic inverse spectral problem (at least in the mathematical community) is undoubtedly that of the identification of the « electric » potential disturbing the Laplacian of Dirichlet, from the spectral data of this operator. It is well known thanks to the Borg-Levinson theorem that this type of coefficient is uniquely determined by the simultaneous data of the spectrum and the trace of the normal derivatives of the eigenfunctions of the associated operator. The aim of this talk is to present a recent result, obtained in collaboration with O. Kavian (Versailles) and Y. Kian (Marseille), establishing that only knowledge of the asymptotic behavior of spectral data at the frontier is sufficient to identify the potential, and this in a stable manner.
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