This paper investigates the Noether symmetry approach in modified f (ℛ, φ, χ) theory of
gravity, where ℛ is the Ricci scalar, φ is a scalar field and χ is the kinetic energy term. For …

This article examines the analytic solutions of isotropic spacetime with the minimal coupling
of scalar field and matter in the context of energy–momentum squared gravity. The scalar …

The main purpose of this article is to analyze some physically viable solutions through the
Noether symmetry technique in f (R, T 2) theory. For this perspective, we assume a …

We provide a complete classification of spherically symmetric static space—times by their
Noether symmetries. We obtain the determining equations for the Noether symmetries using …

Here we investigate the gravitational mass (energy) of the charged Hayward black hole
utilizing the notion of the approximate version of the Lie symmetries. To investigate the …

We investigate the approximate Noether gauge symmetries of the geodesic Lagrangian for
the Bardeen spacetime model. This is accommodated by a set of new approximate Noether …

In this paper, we investigate the energy problem in general relativity using approximate Lie
symmetry methods for differential equations. This procedure is applied to the Bardeen model …

The energy content of the Reissner–Nordstrom black hole surrounded by quintessence is
investigated using approximate Lie symmetry methods. It is mainly done by assuming mass …

We prove a theorem which relates the Lie symmetries of the geodesic equations in a
Riemannian space with the collineations of the metric. We apply the results to Einstein …

This paper examines the energy problem in General Relativity using approximate Lie
symmetry methods for differential equations. We evaluate second-order approximate …