3 citations · 4 across the 2 of their papers we have counts for
7 papers
Ordinary Differential Equations through Dimensional Analysis
José Antonio Belinchón
In in this paper we show how using D.A. it is found a simple change of variables (c.v.) that brings us to obtain differential equations simpler than the original one. In a pedagogi…
On the equation of state of a flat FRW model filled with a bulk viscous fluid
J. A. Belinchón
In this paper, we study the equation of state admissible for a flat FRW models filled with a bulk viscous fluid by using the Lie group method. It is founded that the model admits s…
Cosmological Models with Some Variable Constant
J. A. Belinchon
Various models are under consideration with metric type flat FRW whose energy-momentum tensor is described by a perfect fluid whose generic equation state and taking into account t…
Bulk Viscous Cosmological Model with G and Lambda Variables Through Dimensional Analysis
J. A. Belinchon
A model with flat FRW symmetries and G and Lambda variable,is considered in such a way that the momentum-energy tensor that describes the model is characterized by a bulk viscosity…
Some FRW viscous models with variable G, c and cosmological constant
J. A. Belinchon
We consider several viscous model with metric type FRW, with k=0 and with generic equation of state. We take into account too, the conservation principle for the energy-momentum te…
Enlargement of Planck`s System of Absolute Units
M. Castans, J. A. Belinchon
In this paper, we want to make to see the convenience of the amplification of the Planck`s system of absolute units through the introduction of two new constant, the dynamical cons…