Tilted Bianchi Type I Cosmological Models for Barotropic Perfect Fluid in General Relativity

Abstract

In this paper, we have investigated that tilted Bianchi Type I cosmological models for stiff perfect fluid under a supplementary condition A = Bn between metric potentials, is not possible. The tilted solution is also not possible when we assume A = tl, B = tm, C = tn; l, m and n are constants for e = p. Thus to preserve tilted nature of model, we assume p = γe, 0 ≤ γ ≤ 1 (barotropic equation of state) for the case A = tlB = tm and C = tn. The physical and geometrical aspects of the models are also discussed.