Abstract Einstein’s field equations with variable gravitational and cosmological constants are considered in the presence of perfect fluid for a Robertson-Walker universe by assuming the cosmological term to be proportional to R−m (R is a scale factor and m is a constant). A variety of solutions is presented. The physical significance of the cosmological models has also been discussed.
Keywords cosmological parameters — cosmology: variable cosmological term
It accepts original submissions from all over the world and is internationally published and distributed by IOP