27 citations · 69 across the 10 of their papers we have counts for
5 papers · 1 filter
Homoclinic Chaos in Axisymmetric Bianchi-IX cosmological models with an "ad hoc" quantum potential
G. C. Corrêa, T. J. Stuchi, S. E. Jorás
In this work we study the dynamics of the axisymmetric Bianchi IX cosmological model with a term of quantum potential added. As it is well known this class of Bianchi IX models are…
Friedmann Robertson Walker models with Conformally Coupled Massive Scalar Fields are Non-integrable
L. A. A. Coelho, J. E. F. Skea, T. J. Stuchi
In this work we use a recently developed nonintegrability theorem of Morales and Ramis to prove that the Friedmann Robertson Walker cosmological model with a conformally coupled ma…
Chaos in a closed Friedmann-Robertson-Walker universe: An imaginary approach
S. E. Jorás, T. J. Stuchi
In this work we study the existence of mechanisms of transition to global chaos in a closed Friedmann-Robertson-Walker universe with a massive conformally coupled scalar field. We…
Chaotic exit to inflation: the dynamics of pre-inflationary universes
H. P. de Oliveira, I. Damiao Soares, T. J. Stuchi
We show that anisotropic Bianchi type-IX models, with matter and cosmological constant have chaotic dynamics, connected to the presence of a saddle-center in phase space. The topol…
Chaos in Anisotropic Pre-Inflationary Universes
H. P. de Oliveira, I. Damiao Soares, T. J. Stuchi
We study the dynamics of anisotropic Bianchi type-IX models with matter and cosmological constant. The models can be thought as describing the role of anisotropy in the early stage…