Generalized Robertson–Walker spacetimes — A survey

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...

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Bibliographic Details
Published inInternational journal of geometric methods in modern physics Vol. 14; no. 3; p. 1730001
Main Authors Mantica, Carlo Alberto, Molinari, Luca Guido
Format Journal Article
LanguageEnglish
Published Singapore World Scientific Publishing Company 01.03.2017
World Scientific Publishing Co. Pte., Ltd
Subjects
Spacetime
Robertson–Walker spacetime
concircular vector
perfect fluid spacetime
conformal Killing tensor
conformal Killing vector
Killing vector
torse-forming vector
Generalized Robertson–Walker spacetime
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ISSN0219-8878
1793-6977
DOI10.1142/S021988781730001X

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Summary: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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content type line 14
ISSN:0219-8878
1793-6977
DOI:10.1142/S021988781730001X