aDepartment of Mathematics, Govt. V. College Maihar, Satna, M.P., India, E-mail: shailendratripathi36@yahoo.com
bDepartment of Mathematics Govt. Science College, Rewa, M.P., India, E-mail: rkdubey2004@yahoo.co.in
1Corresponding author
Online published on 24 April, 2012.
Constracted homogeneous and isotropic FRW Cosmological model with constant deceleration parameter and time dependent gravitational and cosmological constant. The Einstein's field equations have been solved by applying a variation law for generalized Hubble's parameter in FRW space- time. The variation law for Hubble's parameter generates two types of solutions for the average scale factor; one is of power law type and other is of the exponential form.
Cosmology, FRW Model, Hubble parameter, constant deceleration parameter, variable
