Some Studies on Relativistic Cosmology

In this book, we have studied the geometrical aspects of the space-time with regard to the space of constant curvature, symmetric space and recurrent space,constructed the spherically symmetric homogeneous cosmological model in Einstein s theory of gravitation and the space-time is designed as degenerate vacuum universe when c = 0, the problem of spherically symmetric homogenous space time with perfect fluid and viscous fluid distribution are considered separately in Einstein s theory, the inhomogeneous plane symmetric space-time in presence of macro matter field representing perfect fluid in Einstein s theory, to construct the plane symmetric inhomogeneous Masonic perfect fluid models in Einstein s theory in presence of micro and macro matter field represented by scalar meson field and perfect fluid respectively obtained Bianchi type -1 spatially homogeneous and isotropic cosmological model in Einstein s theory and its modified theory proposed by Barber in presence of perfect fluid distribution,devoted to study the spatially homogeneous and anisotropic Bianchi type-1 space time with perfect fluid distribution in Barber s second theory of gravitation etc.