A combined BCDE (Brans-Dicke and Einstein-Cartan) theory is developed through Raychaudhuri's equation, for inflationary scenario. It involves a variable cosmological constant, which decreases with time, jointly with energy density, cosmic pressure, shear and Hubble's parameter, while the scale factor, scalar field and spin increase exponentially. Except for the spin component, the fluid goes in the limit, into a perfect fluid
It is shown that a minimally coupled scalara field in Brans-Dicke theory yields a non-decelerated ex...
We investigate cosmological solutions of Brans-Dicke theory with both the vacuum energy density and ...
AbstractWe propose a scenario of brane cosmology in which the Peccei–Quinn field plays the role of t...
We find a solution for exponential inflation in Brans-Dicke cosmology endowed with a cosmological te...
Following a paper by Berman and Marinho Jr (2001), where it was established an equation of state (p=...
In the context of the Brans-Dicke scalar tensor theory of gravitation, the cosmological Friedmann eq...
Generalized, or power-law, inflation is shown to necessarily exist for a simple, anisotropic (Bianch...
Generalized, or power-law, inflation is shown to necessarily exist for a simple, anisotropic, (Bianc...
A new mechanism for baryogenesis is proposed in the context of an extended Brans-Dicke (BD) theory. ...
Brans-Dicke cosmology with an (inverse) power-law potential is revisited in the light of modern quin...
AbstractWe discuss how Starobinsky-like inflation may emerge from dilaton dynamics in brane cosmolog...
We study the effect of the Dp-brane gas in string cosmology. When one kind of Dp-brane gas dominates...
We discuss how Starobinsky-like inflation may emerge from dilaton dynamics in brane cosmology scenar...
We show that Gravitational Waves are exponetially amplified in the inflationary phase in Brans-Dicke...
Algorithms are developed for generating a class of exact braneworld cosmologies, where a self-intera...
It is shown that a minimally coupled scalara field in Brans-Dicke theory yields a non-decelerated ex...
We investigate cosmological solutions of Brans-Dicke theory with both the vacuum energy density and ...
AbstractWe propose a scenario of brane cosmology in which the Peccei–Quinn field plays the role of t...
We find a solution for exponential inflation in Brans-Dicke cosmology endowed with a cosmological te...
Following a paper by Berman and Marinho Jr (2001), where it was established an equation of state (p=...
In the context of the Brans-Dicke scalar tensor theory of gravitation, the cosmological Friedmann eq...
Generalized, or power-law, inflation is shown to necessarily exist for a simple, anisotropic (Bianch...
Generalized, or power-law, inflation is shown to necessarily exist for a simple, anisotropic, (Bianc...
A new mechanism for baryogenesis is proposed in the context of an extended Brans-Dicke (BD) theory. ...
Brans-Dicke cosmology with an (inverse) power-law potential is revisited in the light of modern quin...
AbstractWe discuss how Starobinsky-like inflation may emerge from dilaton dynamics in brane cosmolog...
We study the effect of the Dp-brane gas in string cosmology. When one kind of Dp-brane gas dominates...
We discuss how Starobinsky-like inflation may emerge from dilaton dynamics in brane cosmology scenar...
We show that Gravitational Waves are exponetially amplified in the inflationary phase in Brans-Dicke...
Algorithms are developed for generating a class of exact braneworld cosmologies, where a self-intera...
It is shown that a minimally coupled scalara field in Brans-Dicke theory yields a non-decelerated ex...
We investigate cosmological solutions of Brans-Dicke theory with both the vacuum energy density and ...
AbstractWe propose a scenario of brane cosmology in which the Peccei–Quinn field plays the role of t...