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[期刊论文] 作者:R.K.Tiwari,S.Sharma, 来源:中国物理快报(英文版) 年份:2011
Einstein field equations with the cosmological constant is considered in the presence of bulk viscosity in a Bianchi type-I universe.Solutions of the field equa...
[期刊论文] 作者:R.K.Tiwari,Divya Singh, 来源:中国物理快报(英文版) 年份:2012
[期刊论文] 作者:R.K.Tiwari,Navin Kumar Jha, 来源:中国物理快报(英文版) 年份:2009
We investigate the locally rotationally symmetric (LRS) Bianchi type-Ⅰ cosmological model for stiff matter and a vacuum solution with a cosmological term propo...
[期刊论文] 作者:J.P.Singh,R.K.Tiwari,Pratibha Shukla, 来源:中国物理快报(英文版) 年份:2007
Einstein field equations with variable gravitational and cosmological constants are considered in the presence of perfect fluid for the Bianchi type-Ⅲ universe...
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