In this paper, we will trace the development of the use of symmetry in discussing the theory
of motion initiated by Emmy Noether in 1918. Though it started with its use in classical …

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 …

In a recent study Noether symmetries of some static spacetime metrics in comparison with
Killing vectors of corresponding spacetimes were studied. It was shown that Noether …

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 …

In this paper we establish the definition of the Lie derivative of a second rank tensor in the
context of teleparallel theory of gravity and also extend it for a general tensor of rank p+ q …

A new method is presented for the determination of Ricci Collineations (RC) and Matter
Collineations (MC) of a given spacetime, in the cases where the Ricci tensor and the energy …

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 …

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 …

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 …

In this paper, we investigate Ricci Inheritance Collineations (RICs) in Kantowski–Sachs
spacetimes. RICs are discussed in detail when Ricci tensor is degenerate and …