Abstract
Consider a compact manifold M with boundary ∂ M endowed with a Riemannian metric g and a magnetic field Ω. Given a point and direction of entry at the boundary, the scattering relation Σ determines the point and direction of exit of a particle of unit charge, mass, and energy. In this paper we show that a magnetic system (M,∂ M,g,Ω) that is known to be real-analytic and that satisfies some mild restrictions on conjugate points is uniquely determined up to a natural equivalence by Σ. In the case that the magnetic field Ω is taken to be zero, this gives a new rigidity result in Riemannian geometry that is more general than related results in the literature.
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Communicated by Michael Taylor.
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Herreros, P., Vargo, J. Scattering Rigidity for Analytic Riemannian Manifolds with a Possible Magnetic Field. J Geom Anal 21, 641–664 (2011). https://doi.org/10.1007/s12220-010-9162-z
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DOI: https://doi.org/10.1007/s12220-010-9162-z
Keywords
- Differential geometry
- Riemannian geometry
- Boundary rigidity
- Scattering rigidity
- Lens rigidity
- Metric rigidity
- Inverse problems
- Travel-time tomography
- Magnetic boundary rigidity
- Magnetic scattering rigidity
- Magnetic lens rigidity