Plane Symmetric Bulk Viscous Cosmological Model with Time Dependent Λ-Term in General Theory of Relativity

Abstract

In this paper Einstein’s field equations with time dependent cosmologicalterm  are consider in presence of bulk viscous fluid for plane symmetric space time. For the simplicity of ξ(t), we assumeto be a simple power function of the energy density ξ(t)= ξ₀ρⁿ,  where ξ₀ and n are constants and an equation of state of the form p = γρ where γ (0 ≥ γ ≤ 0) is a constant.Time dependent cosmological term  is found to be a decreasing function of time. Also some geometrical and physical aspects of the modelsare discussed.