Geodesics on an ellipsoid in Minkowski space

Details Geodesics on an ellipsoid in Minkowski space Geodesics on an ellipsoid in Minkowski space

2007-05-01

arxiv.org/abs/0705.0188v1

Mathematics

Differential Geometry

Scientific paper

We describe the geometry of geodesics on a Lorentz ellipsoid: give explicit formulas for the first integrals (pseudo-confocal coordinates), curvature, geodesically equivalent Riemannian metric, the invariant area-forms on the time- and space-like geodesics and invariant 1-form on the space of null geodesics. We prove a Poncelet-type theorem for null geodesics on the ellipsoid: if such a geodesic close up after several oscillations in the "pseudo-Riemannian belt", so do all other null geodesics on this ellipsoid.

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