Generalized Robertson-Walker space times, a survey
classification
🧮 math-ph
gr-qcmath.MP
keywords
robertson-walkergeneralizedpresentedspacetimessurveyallowingcharacterizationchen
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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.
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