We explore a cosmological model in which the time scale is variable with the expansion of
the universe and the effective spacetime is driven by the inflaton field. An example is …

The pre-inflationary evolution of the universe describes the beginning of the expansion from
a static initial state, such that the Hubble parameter is initially zero, but increases to an …

We study the dynamics of scalar metric fluctuations in a non-perturbative variational
formalism recently introduced, by which the dynamics of a geometrical scalar field θ …

We study the interior of a Reissner–Nordström Black-Hole (RNBH) using Relativistic
Quantum Geometry, which was introduced in some previous works. We found discrete …

In this work we introduce Relativistic Quantum Geometry (RQG) on a Modern Kaluza–Klein
theory by studying the boundary conditions on a extended Einstein–Hilbert action for a 5D …

abstract We use recent measurements of the expansion history of the universe to place
constraints on the parameter space of cubic Galileon models, in particular we concentrate …