aHigher Eduzcation, Satpura Bhavan Pachavin Manjil, Bhopal, M.P., India. E-mail: rkdubey2004@yahoo.co.in
bDepartment of Mathematics, Govt. S.V. College Maihar, Satna, M.P., India. E-mail: shailendratripathi36@yahoo.com
1Corresponding author
Online published on 24 April, 2012.
We investigate the locally rotationally symmetric (LRS) Bianchi type I cosmological model with gravitational term proportional to R−n (R is the scale factor and n is a positive constant). The gravitational term decrease with time. We obtain that the present universe is accelerating with large fraction of cosmological density in the form of a cosmological term.
LRS Bianchi type model, Gravitational constant, Isotropic space time, Cosmology
