Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

We present a model of F (R) gravity in the presence of a string theory motivated
misalignment axion like particle materialized in terms of a canonical scalar field minimally …

Persisting tensions between high-redshift and low-redshift cosmological observations
suggest the dark energy sector of the Universe might be more complex than the positive …

In this paper, we study a hybrid combination of Einstein–Hilbert action with curvature scalar
R, and a function f (R) in Palatini gravity within the context of inflationary scenario, from the …

We analyze a class of topological static spherically symmetric vacuum solutions in f (Q)-
gravity. We considered an Ansatz ensuring that those solutions trivially satisfy the field …

In this work we introduce an effective model of f (R) gravity containing a nonminimal
coupling to the axion scalar field. The axion field is described by the misalignment model, in …

In this paper, we have presented an accelerating cosmological model of the Universe in an
extended symmetric teleparallel gravity or f (Q, T) gravity. The parametric form of the Hubble …

In the formalism of generalized holographic dark energy, the infrared cut-off L IR is
generalized to the form, L IR= L IR (L p, L˙ p, L¨ p,⋯, L f, L˙ f, L¨ f,⋯, a, H, H˙, H¨,⋯), where L p …

In this study, we investigate the consequence of the constant-roll condition and examine the
role of a chosen form of f (Q, T) gravity, given by f (Q, T)= α Q 2+ σ T, in the cosmological …

This manuscript aims to discuss the factors holding in/stability of axially symmetric compact
system with anisotropic environment in the background of f (R, T) gravity, where R is …