We discuss equivalent representations of gravity in the framework of metric-affine
geometries pointing out basic concepts from where these theories stem out. In particular, we …

We consider f (Q) extended symmetric teleparallel cosmologies, where Q is the non-metricity
scalar, and constrain its functional form through the order reduction method. By using this …

The aim of this work is to provide a general description of the corpuscular theory of gravity.
After reviewing some of the major conceptual issues emerging from the semiclassical and …

The effects of dark matter spike in the vicinity of the supermassive black hole, located at the
center of M87 (the Virgo A galaxy), are investigated within the framework of the so-called …

Recently, Tsupko et al have put forward the very interesting proposal to use the shadows of
high-redshift supermassive black holes (SMBHs) as standard rulers. This would in principle …

The present article investigates the effect of f (Q) parameters on two classes of exact
spherically symmetric self-bound isotropic solutions for compact objects. The field equation …

Abstract f (Q) symmetric-teleparallel gravity is considered in view of quantum cosmology.
Specifically, we derive cosmological equations for f (Q) models and then investigate the …

In this paper, we investigate the newly developed f (R, T 2) theory (R is the Ricci scalar and
T 2= T αβ T αβ, T αβ demonstrates the energy-momentum tensor) to explore some viable …

We address the galaxy rotation curves through the Yukawa gravitational potential emerging
as a correction of the Newtonian potential in extended theories of gravity. On the one hand …

We derive exact traversable wormhole solutions in the framework of f (R) gravity with no
exotic matter and with stable conditions over the geometric fluid entering the throat. For this …