Khan, F.; Ullah, W.; Hussain, T.; Sumelka, W. Symmetries of the Energy–Momentum Tensor for Static Plane Symmetric Spacetimes. Symmetry2023, 15, 1614.
Khan, F.; Ullah, W.; Hussain, T.; Sumelka, W. Symmetries of the Energy–Momentum Tensor for Static Plane Symmetric Spacetimes. Symmetry 2023, 15, 1614.
Khan, F.; Ullah, W.; Hussain, T.; Sumelka, W. Symmetries of the Energy–Momentum Tensor for Static Plane Symmetric Spacetimes. Symmetry2023, 15, 1614.
Khan, F.; Ullah, W.; Hussain, T.; Sumelka, W. Symmetries of the Energy–Momentum Tensor for Static Plane Symmetric Spacetimes. Symmetry 2023, 15, 1614.
Abstract
This article explores matter collineations (MCs) of static plane-symmetric spacetimes, considering the stress-energy tensor in its contravariant and mixed forms. We solve the MC equations in two cases: when the energy-momentum tensor is nondegenerate and degenerate. For the case of degenerate energy-momentum tensor, we employ a direct integration technique to solve the MC equations, which leads to an infinite-dimensional Lie algebra. On the other hand, when considering the nondegenerate energy-momentum tensor, the contravariant form results in a finite-dimensional Lie algebra with dimensions of either 4 or 10. However, in the case of the mixed form of the energy-momentum tensor, the dimension of the Lie algebra is infinite. Moreover, the obtained MCs are compared with those
already found for covariant stress-energy.
Keywords
Matter collineations; Static Plane-Symmetric Spacetimes; Contravariant and Mixed Energy-Momentum Tensor
Subject
Physical Sciences, Mathematical Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
