We investigate the cosmological implications of f (Q) gravity, which is a modified theory of
gravity based on non-metricity, in non-flat geometry. We perform a detailed dynamical …

We derive novel black hole solutions in a modified gravity theory, namely the Hu–Sawicki
model of f (R) gravity. After obtaining the black hole solution, we study the horizon radius of …

Understanding the anisotropy of ultra high-energy cosmic rays (UHECRs) is crucial for
unravelling the origins and propagation mechanisms of these enigmatic particles. In this …

In the framework of the theory of general relativity, in order to obtain stable traversable
wormholes, matter needs to violate the null energy condition. It is well known that the …

In this exclusive study of the modified f (Q) theory of gravity in the open and closed type
Friedmann–Lemaître–Robertson–Walker (FLRW) Universe model, we impose some …

Considering the Universe as a dynamic system, the understanding of its evolution is an
interesting aspect of study in cosmology. Here, we investigate the anisotropic locally …

In this work, we study the effect of diffusion of ultra-high energy cosmic ray (UHECR) protons
in the presence of turbulent magnetic fields (TMFs) in the light of the f (R) theory of gravity …

We introduce a modification in the energy-momentum conservation violating Rastall's theory
of gravity and obtain a Reissner-Nordström-type black hole solution in spacetime …

We find an exact static solution in four dimensions to the field equations of the f (Q) gravity by
using a cylindrically static spacetime with two different ansatz, ν (r) and μ (r). This solution is …

Drawing on the concept of the non-linear dynamics of electromagnetic fields in vacuum in
terms of the Euler–Heisenberg system, a static and spherically symmetric black hole solution …