We review analytical solutions of the Einstein equations which are expressed in terms of
elementary functions and describe Friedmann–Lemaître–Robertson–Walker universes …

We present the solution space for the case of a minimally coupled scalar field with arbitrary
potential in a Friedmann-Lemaître-Robertson-Walker metric. This is made possible due to …

We outline the content and theoretical support for the proposal of" hydrodynamics on (mini)
superspace"(or a non-linear extension of quantum cosmology) as an effective framework for …

We outline the content and theoretical support for the proposal of “hydrodynamics on (mini)
superspace”(or a non-linear extension of quantum cosmology) as an effective framework for …

We consider a late closed universe of which scale factor is a power function of time using
observational data from combined WMAP5+ BAO+ SN Ia dataset and WMAP5 dataset. The …

In Schwarzschild coordinates\left (t, r, θ, φ\right) t, r, θ, φ on a Lorentzian manifold MM, we
consider a\left (t, r\right) t, r-dependent real scalar field coupled to an unknown\left (t, r\right) …

A new approach to tackle Einstein equations for an isotropic and homogeneous Friedmann–
Robertson–Walker Universe in the presence of a quintessence scalar field is devised. It …

Time-independent nonlinear Schrödinger-type (NLS) formulation of FRW cosmology with
canonical scalar field is considered in the case of two barotropic fluids. We derived …

We describe non-flat standard Friedmann cosmology of canonical scalar field with
barotropic fluid in form of non-linear Schrödinger-type (NLS) formulation in which all …

We show that Einstein's gravitational field equations for the Friedmann-Robertson-Lemaître-
Walker (FRLW) and for two conformal versions of the Bianchi I and Bianchi V perfect fluid …