Exact solutions of Bianchi-type I and V spacetimes in the f(R) theory of gravity

被引：110
作者：
Sharif, M. [1 ]
Shamir, M. Farasat [1 ]
机构：
[1] Univ Punjab, Dept Math, Lahore 54590, Pakistan
来源：
CLASSICAL AND QUANTUM GRAVITY | 2009年 / 26卷 / 23期
关键词：
CONSTANT DECELERATION PARAMETER; COSMOLOGICAL MODELS; TIME;
D O I：
10.1088/0264-9381/26/23/235020
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, the crucial phenomenon of the expansion of the universe has been discussed. For this purpose, we study the vacuum solutions of Bianchi-type I and V spacetimes in the framework of f (R) gravity. In particular, we find two exact solutions in each case using the variation law of Hubble parameter. These solutions correspond to two models of the universe. The first solution gives a singular model, while the second solution provides a non-singular model. The physical behavior of these models is discussed. Moreover, the function of the Ricci scalar is evaluated for both models in each case.
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页数：11
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