## Duke Mathematical Journal

### Radiation fields, scattering, and inverse scattering on asymptotically hyperbolic manifolds

Antônio Sá Barreto

#### Abstract

We define the forward and backward radiation fields on an asymptotically hyperbolic manifold and show that they give unitary translation representations of the wave group and as such can be used to define a scattering matrix. We show that this scattering matrix is equivalent to the one defined by stationary methods. Furthermore, we prove a support theorem for the radiation fields which generalizes to this setting well-known results of Helgason [23] and Lax and Phillips [35] for the horocyclic Radon transform. As an application, we use the boundary control method of Belishev [4] to show that an asymptotically hyperbolic manifold is determined up to invariants by the scattering matrix at all energies.

#### Article information

Source
Duke Math. J., Volume 129, Number 3 (2005), 407-480.

Dates
First available in Project Euclid: 19 October 2005

https://projecteuclid.org/euclid.dmj/1129729971

Digital Object Identifier
doi:10.1215/S0012-7094-05-12931-3

Mathematical Reviews number (MathSciNet)
MR2169870

Zentralblatt MATH identifier
1154.58310

Subjects
Primary: 81U40: Inverse scattering problems

#### Citation

Sá Barreto, Antônio. Radiation fields, scattering, and inverse scattering on asymptotically hyperbolic manifolds. Duke Math. J. 129 (2005), no. 3, 407--480. doi:10.1215/S0012-7094-05-12931-3. https://projecteuclid.org/euclid.dmj/1129729971

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