Conformal Ricci collineations in LRS Bianchi type V spacetimes with perfect fluid matter

被引：8
|
作者：
Khan, Fawad [1 ]
Hussain, Tahir [1 ]
Akhtar, Sumaira Saleem [1 ]
机构：
[1] Univ Peshawar, Dept Math, Khyber Pakhtunkhwa, Pakistan
来源：
MODERN PHYSICS LETTERS A | 2017年 / 32卷 / 24期
关键词：
Conformal Ricci collineations; Ricci collineations; Bianchi type V spacetimes; KANTOWSKI-SACHS; III SPACETIMES; RELATIVITY; TIMES;
D O I：
10.1142/S0217732317501243
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Considering the perfect fluid as a source of energy-momentum tensor, we have classified locally rotationally symmetric (LRS) Bianchi type V spacetimes according to their conformal Ricci collineations (CRCs). It is shown that the LRS Bianchi type V spacetimes with perfect fluid matter admit 9-or 15-dimensional Lie algebra of CRCs when the Ricci tensor is non-degenerate, while the group of CRCs is infinite for degenerate Ricci tensor.
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页数：11
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