3 papers
gr-qc2025
The causal structure of the c-completion of warped spacetimes
Luis Aké Hau, Saul Burgos, Didier A. Solis
In this work we study the structure of the future causal completion of a globally hyperbolic GRW spacetime using the novel notion of Lorentzian pre…
math.DG2025
Codimension two spacelike submanifolds into null hypersurfaces of generalized Robertson-Walker spacetimes
Luis J. Alias, Josue Melendez, Matias Navarro +1
We study codimension two spacelike submanifolds contained into a general class of null hypersurfaces in generalized Robertson-Walker spacetimes, refer to as nullcones. In particula…
math.DG2024
Low regularity approach to Bartnik's conjecture
José Luis Flores, Jónatan Herrera, Didier A. Solis
In this work we establish a version of the Bartnik Splitting Conjecture in the context of Lorentzian length spaces. In precise terms, we show that under an appropriate timelike com…