Generalized Robertson-Walker space times, a survey
Mathematical Physics
2017-01-24 v1 General Relativity and Quantum Cosmology
math.MP
Abstract
Generalized Robertson-Walker spacetimes extend the notion of Robertson-Walker spacetimes, by allowing for spatial non-homogeneity. A survey is presented, with main focus on Chen's characterization in terms of a timelike concircular vector. Together with their most important properties, some new results are presented.
Keywords
Cite
@article{arxiv.1612.07021,
title = {Generalized Robertson-Walker space times, a survey},
author = {Carlo Alberto Mantica and Luca Guido Molinari},
journal= {arXiv preprint arXiv:1612.07021},
year = {2017}
}
Comments
23 pages. Accepted for publication on Int. J. Geom. Meth. Mod. Phys