A proof of Lens Rigidity in the category of Analytic Metrics

Details A proof of Lens Rigidity in the category of Analytic Metrics A proof of Lens Rigidity in the category of Analytic Metrics

2008-12-03

arxiv.org/abs/0812.0827v1

Mathematics

Differential Geometry

11 pages, 5 figures

Scientific paper

Consider a compact Riemannian manifold with boundary. Assume all maximally extended geodesics intersect the boundary at both ends. Then to each maximal geodesic segment one can form a triple consisting of the initial and final vectors of the segment and the length of the segment. The collection of all such triples comprises the lens data. In this paper, it is shown that in the category of analytic Riemannian manifolds, the lens data uniquely determine the metric up to isometry. There are no convexity assumptions on the boundary, and conjugate points are allowed, but with some restriction.

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