@article{ijp2013141,
author={{Singh, M. K. and Verma, M. K. and Ram, Shri},
title={Anisotropic Bianchi Type-II Viscous Fluid Models with Time-Dependent Gravitational and Cosmological Constants},
journal={International Journal of Physics},
volume={1},
number={4},
pages={77--83},
year={2013},
url={http://pubs.sciepub.com/ijp/1/4/1},
abstract={This paper deals with totally anisotropic Bianchi type-II cosmological models filled with a bulk viscous fluid in the presence of time-varying gravitational and cosmological constants. Exact solutions of the field equations are obtained by applying a special law of variation for Hubble¡¯s parameter which yields a constant value of the deceleration parameter. Two different physically viable models of the universe are presented in two types of cosmologies, one with power-law expansion and other one with exponential expansion. Cosmological model with power-law expansion has an initial big-bang type singularity at t = 0, whereas the model with exponential expansion has a singularity in infinite past. The physical and dynamical properties of the models are discussed.},
doi={10.12691/ijp-1-4-1}
publisher={Science and Education Publishing}
}