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 …
Conformal Ricci collineations in LRS Bianchi type V spacetimes with perfect fluid matter
Considering the perfect fluid as a source of energy–momentum tensor, we have classified
locally rotationally symmetric (LRS) Bianchi type V spacetimes according to their conformal …
locally rotationally symmetric (LRS) Bianchi type V spacetimes according to their conformal …
Concircular vector fields for plane-symmetric static spacetimes
AT Ali, S Khan - The European Physical Journal Plus, 2016 - Springer
In this paper, we investigate concircular vector fields (CVFs) of static plane symmetric four-
dimensional Lorentzian manifold. Ten conformal Killing equations and their general form of …
dimensional Lorentzian manifold. Ten conformal Killing equations and their general form of …
Non-static spherically symmetric spacetimes and their conformal Ricci collineations
For a perfect fluid matter, we present a study of conformal Ricci collineations (CRCs) of non-
static spherically symmetric spacetimes. For non-degenerate Ricci tenor, a vector field …
static spherically symmetric spacetimes. For non-degenerate Ricci tenor, a vector field …
Conformal collineations of the Ricci and energy–momentum tensors in static plane symmetric space–times
We provide a complete classification of static plane symmetric space–times according to
conformal Ricci collineations (CRCs) and conformal matter collineations (CMCs) in both the …
conformal Ricci collineations (CRCs) and conformal matter collineations (CMCs) in both the …
Lie symmetries of static spherically symmetric spacetimes by Rif tree approach
T Hussain, AH Bokhari, A Munawar - The European Physical Journal Plus, 2022 - Springer
In this paper, we classify Lie symmetries of static spherically symmetric spacetimes using Rif
tree approach. Instead of using direct integration techniques, we analyze the Lie symmetry …
tree approach. Instead of using direct integration techniques, we analyze the Lie symmetry …
Lie symmetries of the Ricci and energy-momentum tensors
H Khan, A Qadir, K Saifullah, M Ziad - The European Physical Journal Plus, 2013 - Springer
Though the Ricci and energy-momentum tensors have the same algebraic symmetries and
appear in a similar way in the Einstein equations, in that interchanging them and inverting …
appear in a similar way in the Einstein equations, in that interchanging them and inverting …
Classification of Kantowski–Sachs metric via conformal Ricci collineations
In this paper, we present a classification of the Kantowski–Sachs spacetime metric
according to its conformal Ricci collineations (CRCs). Solving the CRC equations, it is …
according to its conformal Ricci collineations (CRCs). Solving the CRC equations, it is …
[PDF][PDF] Conformal Ricci collineations associated to the Levi-Civita connection on three-dimensional Lorentzian Lie groups
Y Wang - arXiv preprint arXiv:2303.15075, 2023 - arxiv.org
arXiv:2303.15075v1 [math.DG] 27 Mar 2023 Page 1 arXiv:2303.15075v1 [math.DG] 27 Mar 2023
CONFORMAL RICCI COLLINEATIONS ASSOCIATED TO THE LEVI-CIVITA CONNECTION …
CONFORMAL RICCI COLLINEATIONS ASSOCIATED TO THE LEVI-CIVITA CONNECTION …
Classification of locally rotationally symmetric Bianchi-I space–times using conformal Ricci collineations
We present a complete classification of locally rotationally symmetric (LRS) Bianchi-I space–
times in accordance with their conformal Ricci collineations (CRCs). In the case where the …
times in accordance with their conformal Ricci collineations (CRCs). In the case where the …