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gr-qc2024
A Methodological Framework for Solving Einsteins Equations in Axially Symmetric Spacetimes
J. Ospino, J. L. Hernández-Pastora, A. V. Araujo-Salcedo +1
This work presents a novel methodology for deriving stationary and axially symmetric solutions to Einstein field equations using the 1+3 tetrad formalism. This approach reformulate…
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…