ListarMA - Artículos por tema "Geometría semi-riemanniana"
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On the regularity of null cones and geodesic spheres
(Springer, 2023)We show a property on the null cones in a Lorentzian manifold near a conjugate point, which contributes to the understanding of the behaviour of the exponential map. We also give an analogous property in the Riemannian case.