Comment on Ricci collineations for spherically symmetric space-times

被引：2
|
作者：
Apostolopoulos, PS [1 ]
Tsamparlis, M [1 ]
机构：
[1] Univ Athens, Dept Phys, Sect Astrophys Astron Mech, Athens 15783, Greece
来源：
GENERAL RELATIVITY AND GRAVITATION | 2002年 / 34卷 / 01期
关键词：
spherically symmetric space-times; Ricci collineations; Robertson-Walker space-time;
D O I：
10.1023/A:1015214404912
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is shown that the results of the paper Contreras, G., Nunez, L. A., Percoco, U. Ricci Collineations for Non-degenerate, Diagonal and Spherically Symmetric Ricci Tensors (2000). Gen. Rel. Grav 32, 285-294 concerning the Ricci Collineations in spherically symmetric space-times with non-degenerate and diagonal Ricci tensor do not cover all possible cases, Furthermore the complete algebra of Ricci Collineations of certain Robertson-Walker metrics of vanishing spatial curvature are given.
引用
收藏
页码：49 / 52
页数：4
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