Bianchi Type-III Cosmological Models with Gravitational Constant G and the Cosmological Constant ∧ |
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作者姓名: | J. P. Singh R. K. Tiwari Pratibha Shukla |
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作者单位: | [1]Department of Mathematical Sciences, A.P.S. University, Rewa (MP), India [2]Department of Mathematics, Govt. Model Science College, Rewa (MP), India |
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摘 要: | Einstein field equations with variable gravitational and cosmological constants are considered in the presence of perfect fluid for the Bianchi type-Ⅲ universe by assuming conservation law for the energy-momentum tensor. Exact solutions of the field equations are obtained by using the scalar of expansion proportional to the shear scalar θ∝σ, which leads to a relation between metric potential B = Cn, where n is a constant. The corresponding physical interpretation of the cosmological solutions are also discussed.
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关 键 词: | Einstein方程 宇宙论 重力常数 守恒定律 |
收稿时间: | 2007-08-22 |
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