A new approach to hyperbolic inverse problems

Details A new approach to hyperbolic inverse problems A new approach to hyperbolic inverse problems

2005-05-22

arxiv.org/abs/math/0505452v3

Mathematics

Analysis of PDEs

We corrected the proof of the main Lemma 2.1 by assuming that potentials A(x),V(x) are real valued

Scientific paper

10.1088/0266-5611/22/3/005

We present a modification of the BC-method in the inverse hyperbolic problems. The main novelty is the study of the restrictions of the solutions to the characteristic surfaces instead of the fixed time hyperplanes. The main result is that the time-dependent Dirichlet-to-Neumann operator prescribed on a part of the boundary uniquely determines the coefficients of the self-adjoint hyperbolic operator up to a diffeomorphism and a gauge transformation. In this paper we prove the crucial local step. The global step of the proof will be presented in the forthcoming paper.

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