156 citations · 1.3k across the 48 of their papers we have counts for
11 papers · 1 filter
Interacting cosmic fluids in power-law Friedmann-Robertson-Walker cosmological models
Mauricio Cataldo, Patricio Mella, Paul Minning +1
We provide a detailed description for power--law scaling Friedmann-Robertson-Walker cosmological scenarios dominated by two interacting perfect fluid components during the expansio…
Relic gravitons and viscous cosmologies
Mauricio Cataldo, Patricio Mella
Previously it was shown that there exists a class of viscous cosmological models which violate the dominant energy condition for a limited amount of time after which they are smoot…
Viscous dark energy and phantom evolution
Mauricio Cataldo, Norman Cruz, Samuel Lepe
In order to study if the bulk viscosity may induce a big rip singularity on the flat FRW cosmologies, we investigate dissipative processes in the universe within the framework of t…
On Magnetic solution to 2+1 Einstein--Maxwell gravity
M. Cataldo, J. Crisostomo, S. del Campo +1
The three--dimensional magnetic solution to the Einstein--Maxwell field equations have been considered by some authors. Several interpretations have been formulated for this magnet…
A causal model for a closed universe
M. Cataldo, S. del Campo, P. Minning +1
We study a closed model of a universe filled with viscous fluid and quintessence matter components. The dynamical equations imply that the universe might look like an accelerated f…
Relationship between (2+1) and 3+1)--Friedmann--Robertson--Walker cosmologies
A. Garcia, M. Cataldo, S. del Campo
In this work we establish the correspondence between solutions to the Friedmann--Robertson--Walker cosmologies for perfect fluid and scalar field sources, where both ones fulfill s…
Supergravity with cosmological constant and the AdS group
P. Salgado, S. del Campo, M. Cataldo
It is shown that the supersymmetric extension of the Stelle-West formalism permits the construction of an action for -dimensional N=1 supergravity with cosmological constant…
Duality mappings within three-dimensional nonlinear electrodynamics
M. Cataldo
In three-dimensional Einstein-Maxwell gravity the electrostatic Banados-Teitelboim-Zanelli solution and the magnetostatic Hirschmann-Welch solution are connected by a duality mappi…
(2+1)-Dimensional Black Hole with Coulomb-like Field
M. Cataldo, N. Cruz, S. del Campo +1
A (2+1)-static black hole solution with a nonlinear electric field is derived. The source to the Einstein equations is a nonlinear electrodynamics, satisfying the weak energy condi…
Regular (2+1)-dimensional black holes within non-linear Electrodynamics
Mauricio Cataldo, Alberto Garcia
(2+1)-regular static black hole solutions with a nonlinear electric field are derived. The source to the Einstein equations is an energy momentum tensor of nonlinear electrodynamic…
Three Dimensional Black Hole Coupled to the Born-Infeld Electrodynamics
Mauricio Cataldo, Alberto Garcia
A nonlinear charged version of the (2+1)-anti de Sitter black hole solution is derived. The source to the Einstein equations is a Born-Infeld electromagnetic field, which in the we…