Bulk Viscous String Cosmological Models in Lyra Geometry

Abstract

In this paper we have obtained and presented a new class of spatially homogeneous Kantowski – Sachs cosmological models in the presence of bulk viscous cosmic strings in the frame work of a theory of gravitation proposed by Sen (1957) based on Lyra (1951) geometry. To obtain a solution, it is assumed that expansion scalar is proportional to shear scalar i.e. θ ∝s², which leads to a relation between metric potentials. Some physical and geometrical aspects of the results are also discussed.