Bulk Viscous Fluid Hypersurface - Homogeneous Cosmological Models With Time Varying G and Λ

被引：0

作者：

Ram, Shri ^{[1
]}

Verma, M. K. ^{[1
]}

机构：

[1] Banaras Hindu Univ, Inst Technol, Dept Appl Math, Varanasi 221005, Uttar Pradesh, India

来源：

ADVANCED RESEARCH IN PHYSICS AND ENGINEERING | 2010年

关键词：

Hypersurface; -; homogeneous; Bulk viscosity; Variable G and Lambda. LATEX; VARIABLE-G; GENERAL-RELATIVITY; UNIVERSE; CONSTANT; GRAVITATION; CREATION; SUPERNOVAE; EXPANSION;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Hypersurface - homogeneous cosmological models containing a bulk viscous fluid with time varying G and Lambda have been presented. We have shown that the field equations are solvable for any arbitrary cosmic scale function. The viscosity coefficient of bulk viscous fluid is assumed to be a power function of the energy density. Exact solutions of Einstein's field equations are obtained which represent an expanding, shearing and accelerating / decelerating models of the universe. The physical and kinematical behaviours of the models are also discussed.

引用

页码：23 / +

页数：3

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