6 citations · 7 across the 5 of their papers we have counts for
5 papers
Geodesic Connectedness of Affine Manifolds
Ivan P. Costa e Silva, José L. Flores
We discuss new sufficient conditions under which an affine manifold is geodesically connected. These conditions are shown to be essentially weaker than those discussed…
A note on causality conditions on covering spacetimes
Ettore Minguzzi, Ivan P. Costa e Silva
A number of techniques in Lorentzian geometry, such as those used in the proofs of singularity theorems, depend on certain smooth coverings retaining interesting global geometric p…
Some remarks on conformal symmetries and Bartnik's splitting conjecture
Ivan P. Costa e Silva, José Luis Flores, Jónatan Herrera
Inspired by the results in a recent paper by G. Galloway and C. Vega (see arXiv:1712.00785), we investigate a number of geometric consequences of the existence of a timelike confor…
A novel notion of null infinity for c-boundaries and generalized black holes
I. P. Costa e Silva, J. L. Flores, J. Herrera
We give new definitions of null infinity and black hole in terms of causal boundaries, applicable to any strongly causal spacetime . These are meant to extend the standard o…
On the splitting problem for Lorentzian manifolds with an -action with causal orbits
Ivan P. Costa e Silva, José Luis Flores
We study the interplay between the global causal and geometric structures of a spacetime and the features of a given smooth -action on whose orbits are…