Generation of Bianchi type V cosmological models with varying L-term

被引:22
作者
Pradhan, AP [1 ]
机构
[1] Hindu Postgrad Coll, Dept Math, Ghazipur 232331, India
[2] KN Govt Postgrad Coll, Dept Phys, Bhadohi 221304, India
关键词
cosmology; variable cosmological constant; Bianchi type V universe;
D O I
10.1007/s10582-005-0057-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Bianchi type V perfect fluid cosmological models are investigated with cosmological term A varying with time. Using a generation technique (Camci et al., 2001), it is shown that Einstein's field equations are solvable for any, arbitrary cosmic scale function. Solu tions for particular forms of cosmic scale functions are also obtained. The cosmological constant is found to be a decreasing function of time, which is supported by results from recent type Ia supernovae observations. Some physical aspects of the models are also discussed.
引用
收藏
页码:503 / 518
页数:16
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