Generalized Robertson-Walker spacetimes - A survey

被引：129
|
作者：
Mantica, Carlo Alberto [1 ]
Molinari, Luca Guido [2 ,3 ]
机构：
[1] IIS Lagrange, Via L Modignani 65, I-20161 Milan, Italy
[2] Univ Milan, Dept Phys, Via Celoria 16, I-20133 Milan, Italy
[3] INFN Sezione Milano, Via Celoria 16, I-20133 Milan, Italy
来源：
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2017年 / 14卷 / 03期
关键词：
Generalized Robertson-Walker spacetime; perfect fluid spacetime; Killing vector; conformal Killing vector; torse-forming vector; concircular vector; conformal Killing tensor; Robertson-Walker spacetime; CONSTANT MEAN-CURVATURE; SPACELIKE HYPERSURFACES; NULL HYPERSURFACES; UNIQUENESS; EQUATION; STABILITY; GEOMETRY; PRODUCT; TIMES;
D O I：
10.1142/S021988781730001X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：27
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