Cylindrically symmetric inhomogeneous cosmological models with viscous fluid and varying Λ

2006 ◽  
Vol 56 (6) ◽  
pp. 641-660 ◽  
Author(s):  
Anirudh Pradhan ◽  
Prashant Kumar Singh ◽  
R. Kanti Jotania
Keyword(s):  
Viscous Fluid ◽  
Cosmological Models ◽  
Inhomogeneous Cosmological Models ◽  
Cylindrically Symmetric ◽  
Varying Λ

Plane Symmetric Viscous Fluid Cosmological Models with Varying Λ-Term

2007 ◽  
Vol 46 (11) ◽  
pp. 2774-2787 ◽  
Author(s):  
Anirudh Pradhan ◽  
Purnima Pandey ◽  
Kanti Jotania ◽  
Mahesh Kumar Yadav
Keyword(s):  
Viscous Fluid ◽  
Cosmological Models ◽  
Plane Symmetric ◽  
Varying Λ

scholarly journals Some Inhomogeneous Magnetized Viscous-Fluid Cosmological Models with Varying Λ

2004 ◽  
Vol 54 (2) ◽  
pp. 255-272 ◽  
Author(s):  
Anirudh Pradhan ◽  
Sudhir Kumar Srivastav ◽  
Kanti R. Jotania
Keyword(s):  
Viscous Fluid ◽  
Cosmological Models ◽  
Varying Λ

scholarly journals Some Homogeneous Bianchi type IX Viscous Fluid Cosmological Models with a Varying Λ

2005 ◽  
Vol 298 (3) ◽  
pp. 419-432 ◽  
Author(s):  
Anirudh Pradhan ◽  
Sudhir Kumar Srivastav ◽  
Mahesh Kumar Yadav
Keyword(s):  
Viscous Fluid ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Varying Λ

scholarly journals BIANCHI TYPE I ANISOTROPIC MAGNETIZED COSMOLOGICAL MODELS WITH VARYING Λ

2003 ◽  
Vol 12 (07) ◽  
pp. 1299-1314 ◽  
Author(s):  
ANIRUDH PRADHAN ◽  
OM PRAKASH PANDEY
Keyword(s):  
Magnetic Field ◽  
Viscous Fluid ◽  
Bianchi Type ◽  
Mass Density ◽  
Cosmological Models ◽  
Type I ◽  
Bianchi Type I ◽  
Bulk Viscous Fluid ◽  
Varying Λ ◽  
The Magnetic Field

Bianchi type I magnetized cosmological models in the presence of a bulk viscous fluid are investigated. The source of the magnetic field is due to an electric current produced along the x-axis. The distribution consists of an electrically neutral viscous fluid with an infinite electrical conductivity. The coefficient of bulk viscosity is assumed to be a power function of mass density. The cosmological constant Λ is found to be positive and is a decreasing function of time which is supported by results from recent supernovae observations. The behaviour of the models in the presence and the absence of magnetic field are also discussed.

scholarly journals Lensing effects in inhomogeneous cosmological models

2009 ◽  
Vol 79 (10) ◽  
Author(s):  
Sima Ghassemi ◽  
Salomeh Khoeini-Moghaddam ◽  
Reza Mansouri
Keyword(s):  
Cosmological Models ◽  
Inhomogeneous Cosmological Models
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