Cylindrically symmetric cosmological model in the presence of bulk stress with varying $Lambda$

Pramana

V G METE1³  A S NIMKAR²  V D ELKAR¹ 

[1] Department of Mathematics, J.D. Patil Sangludkar Mahavidyalaya, Daryapur 444 803, India$$;Department of Mathematics, Dr R.G. Rathod Arts and Science College, Murtizapur 444 107, India$$;Department of Mathematics, R.D.I.K. & K.D. College, Badnera-Amravati 444 701, India$$

关键词: Cylindrically symmetric space–time;    viscous fluid;    variable cosmological constant.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Cylindrically symmetric non-static space–time is investigated in the presence of bulk stress given by Landau and Lifshitz. To get a solution, a supplementary condition between metric potentials is used. The viscosity coefficient of the bulk viscous fluid is assumed to be a power function of mass density whereas the coefficient of shear viscosity is considered as proportional to the scale of expansion in the model. Also some physical and geometrical properties of the model are discussed.

【 授权许可】

Unknown