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Stability of maximal hypersurfaces in spacetimes: new general conditions and application to relevant spacetimes
(Springer, 2017)
We obtain new simple sufficient conditions to ensure the stability and strong stability of maximal hypersurfaces (without boundary) immersed in an arbitrary spacetime. Several applications to maximal hypersurfaces in a ...
Galilean Generalized Robertson-Walker spacetimes: a new family of Galilean geometrical models
(American Institute of Physics, 2018)
We introduce a new family of Galilean spacetimes, the Galilean generalized Robertson-Walker spacetimes. This new family is relevant in the context of a generalized Newton-Cartan theory. We study its geometrical structure ...