5 papers
Chen-Wu type model and the total energy of the universe
M. de Campos
The inclusion of a term, today, in the relativistic field equations is consequence of the evolution of an observational cosmology. In this work we argue the "ansatz" $Λ= βH^2 +…
Perturbed Einstein field equations using Maple
M. de Campos
We obtain the perturbed components of affine connection and Ricci tensor using algebraic computation. Naturally, the perturbed Einstein field equations for the vacuum can be writte…
Evolution of the Density Contrast with Particle Production in a Gauge-Invariant Formalism
M. de Campos, N. Tomimura
In this work we derive the evolution equation for the density contrast considering open system cosmology, where the influence of adiabatic particle production process on the dynami…
Growing of the Inhomogeneities with Particle Production
N. A. Tomimura, M. de Campos
Perturbations in Prigogine's cosmological model with particle creation are investigated in the framework of Newtonian Theory. The necessary conditions for the density contrast to r…
The age problem and growing of structures for open system cosmology
M. de Campos, N. A. Tomimura
A new equation for the density contrast is derived in the framework of reexamined Newtonian cosmology taken into account adiabatic matter creation in the universe. The age of the u…