Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8256104 | Journal of Geometry and Physics | 2016 | 9 Pages |
Abstract
We study the scalar curvature of spacelike hypersurfaces in the family of cosmological models known as generalized Robertson-Walker spacetimes, and give several rigidity results under appropriate mathematical and physical assumptions. On the other hand, we show that this family of spacetimes provides suitable models obeying the null convergence condition to explain accelerated expanding universes.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Juan A. Aledo, Rafael M. Rubio,