2 papers
gr-qc2020
Karmarkar scalar condition
J. Ospino, L. A. Nunez
In this work we present the Karmarkar condition in terms of the structure scalars obtained from the orthogonal decomposition of the Riemann tensor. This the new expression becomes…
gr-qc2018
Are there any models with homogeneous energy density?
J. Ospino, J. L. Hernández-Pastora, H. Hernández +1
By applying a recent method --based on a tetrad formalism in General Relativity and the orthogonal splitting of the Riemann tensor-- to the simple spherical static case, we found t…