Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …

We systematically review some standard issues and also the latest developments of
modified gravity in cosmology, emphasizing on inflation, bouncing cosmology and late-time …

Cosmography can be considered as a sort of a model-independent approach to tackle the
dark energy/modified gravity problem. In this review, the success and the shortcomings of …

We investigate modified theories of gravity in the context of teleparallel geometries. It is well
known that modified gravity models based on the torsion scalar are not invariant under local …

Energy conditions can play an important role in defining the cosmological evolution.
Specifically acceleration/deceleration of cosmic fluid, as well as the emergence of Big Rip …

We consider the cosmology derived from f (T, B) gravity where T is the torsion scalar and B=
2 e ∂ _ μ (e T^ μ) B= 2 e∂ μ (e T μ) a boundary term. In particular we discuss how it is …

This paper investigates the behavior of charged compact stars in the modified f (R, ϕ) theory
of gravity, where R and ϕ denote the Ricci scalar and scalar field respectively. The modified …

Scalar fields have played an important role in the development of the fundamental theories
of physics as well as in other branches of physics such as gravitation and cosmology. For a …

Novel static black hole solutions with electric and magnetic charges are derived for the class
of modified gravities: f (R)= R+ 2 β R f (R)= R+ 2 β R, with or without a cosmological …

In the context of scalar-tensor theories of gravity we compute the third-order corrected
spectral indices in the slow-roll approximation. The calculation is carried out by employing …