Locally rotationally symmetric Bianchi type-I string cosmological model with bulk viscosity

被引:0
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作者
Wang, XX [1 ]
机构
[1] Anhui Normal Univ, Dept Phys, Wuhu 241000, Peoples R China
关键词
D O I
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中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A locally rotationally symmetric (LRS) Bianchi type-I string cosmological model with bulk viscosity is investigated. To obtain a determinate solution, it is assumed that the coefficient of bulk viscosity is a power function of the energy density zeta = zeta(0)rho(m) and the scalar of expansion is proportional to the shear scalar theta proportional to sigma, which leads to a relation between metric potentials R = AS(n), where R and S are only the functions of time. The physical and geometrical aspects of the model are also discussed. The solution includes some results previously given in the literature as special cases.
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页码:1205 / 1207
页数:3
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