Conformal symmetries of the energy–momentum tensor of spherically symmetric static spacetimes
U Camci, K Saifullah - Symmetry, 2022 - mdpi.com
Conformal matter collineations of the energy–momentum tensor of a general spherically
symmetric static spacetime are studied. The general form of these collineations is found …
symmetric static spacetime are studied. The general form of these collineations is found …
Matter collineations of spacetime homogeneous Gödel-type metrics
The spacetime homogeneous Gödel-type spacetimes which have four classes of metrics are
studied according to their matter collineations. The results obtained are compared with …
studied according to their matter collineations. The results obtained are compared with …
Noether symmetries of Bianchi type II spacetimes
M Hickman, S Yazdan - General Relativity and Gravitation, 2017 - Springer
This paper is devoted to investigate Noether symmetries of Bianchi type II spacetimes. We
use the reduced involutive form of the determining equations to classify their possible …
use the reduced involutive form of the determining equations to classify their possible …
Ricci collineations of the Bianchi types I and III, and Kantowski–Sachs spacetimes
Ricci collineations of the Bianchi types I and III, and Kantowski–Sachs spacetimes are
classified according to their Ricci collineation vector (RCV) field of the form (i)–(iv) one …
classified according to their Ricci collineation vector (RCV) field of the form (i)–(iv) one …
Matter collineations in Kantowski-Sachs, Bianchi types I and III spacetimes
The matter collineation classifications of Kantowski-Sachs, Bianchi types I and III space
times are studied according to their degenerate and non-degenerate energy-momentum …
times are studied according to their degenerate and non-degenerate energy-momentum …
Ricci collineations in perfect fluid Bianchi V spacetime
U Camci, I Türkyilmaz - General Relativity and Gravitation, 2004 - Springer
The Bianchi V spacetimes with perfect-fluid matter are classified according to their Ricci
collineations. We have found that in the degenerate case there are infinitely many Ricci …
collineations. We have found that in the degenerate case there are infinitely many Ricci …
Conformal Ricci collineations of static spherically symmetric spacetimes
U Camci, A Qadir, K Saifullah - Communications in Theoretical …, 2008 - iopscience.iop.org
Conformal Ricci collineations of static spherically symmetric spacetimes are studied. The
general form of the vector fields generating conformal Ricci collineations is found when the …
general form of the vector fields generating conformal Ricci collineations is found when the …
Ricci inheritance collineations in Kantowski–Sachs spacetimes
T Hussain, A Musharaf, S Khan - International Journal of Geometric …, 2016 - World Scientific
In this paper, we investigate Ricci Inheritance Collineations (RICs) in Kantowski–Sachs
spacetimes. RICs are discussed in detail when Ricci tensor is degenerate and …
spacetimes. RICs are discussed in detail when Ricci tensor is degenerate and …
Classifications of Kantowski–Sachs, Bianchi types I and III spacetimes according to Ricci collineations
U Camci, İ YAVUZ - International Journal of Modern Physics D, 2003 - World Scientific
The Ricci collineation classifications of Kantowski–Sachs, Bianchi types I and III spacetimes
are studied according to their degenerate and non-degenerate Ricci tensor. When the Ricci …
are studied according to their degenerate and non-degenerate Ricci tensor. When the Ricci …
Ricci inheritance collineation in Bianchi type I spacetimes
T Hussain, SS Akhtar, S Khan - The European Physical Journal Plus, 2015 - Springer
In this article we explored the Ricci inheritance collineations (RICs) for Bianchi type I
spacetimes. When the Ricci tensor is non-degenerate, the general form of vector fields …
spacetimes. When the Ricci tensor is non-degenerate, the general form of vector fields …