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arXiv · 1705.01215

Reconstruction of Lorentzian manifolds from boundary light observation sets

Peter Hintz·Gunther Uhlmann
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Abstract

On a time-oriented Lorentzian manifold $(M,g)$ with non-empty boundary satisfying a convexity assumption, we show that the topological, differentiable, and conformal structure of suitable subsets $S\subset M$ of sources is uniquely determined by measurements of the intersection of future light cones from points in $S$ with a fixed open subset of the boundary of $M$; here, light rays are reflected at $\partial M$ according to Snell's law. Our proof is constructive, and allows for interior conjugate points as well as multiply reflected and self-intersecting light cones.

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Peter Hintz, Gunther Uhlmann. 2020-05-27. Reconstruction of Lorentzian manifolds from boundary light observation sets. https://doi.org/10.1093/imrn%2Frnx320

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