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On the Integral Geometry of Liouville Billiard Tables

The notion of a Radon transform is introduced for completely integrable billiard tables. In the case of Liouville billiard tables of dimension 3 we prove that the Radon transform is one-to-one on the space of continuous functions K on the boundary which are invariant with respect to the correspondin...

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Bibliographic Details
Published in:Communications in mathematical physics 2011-05, Vol.303 (3), p.721-759
Main Authors: Popov, G., Topalov, P.
Format: Article
Language:English
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Summary:The notion of a Radon transform is introduced for completely integrable billiard tables. In the case of Liouville billiard tables of dimension 3 we prove that the Radon transform is one-to-one on the space of continuous functions K on the boundary which are invariant with respect to the corresponding group of symmetries. We prove also that the frequency map associated with a class of Liouville billiard tables is non-degenerate. This allows us to obtain spectral rigidity of the corresponding Laplace-Beltrami operator with Robin boundary conditions.
ISSN:0010-3616
1432-0916
DOI:10.1007/s00220-011-1223-z