In this paper, we present an introduction to cosmic inflation in the framework of Palatini
gravity, which provides an intriguing alternative to the conventional metric formulation of …

The predictions of standard Higgs inflation in the framework of the metric formalism yield a
tensor-to-scalar ratio r∼ 10-3 which lies well within the expected accuracy of near-future …

We discuss some general and relevant features of longitudinal gravitational modes in
Horndeski gravity and their interaction with matter media. Adopting a gauge-invariant …

In this paper we discuss on the phenomenological viability of nonmetricity theories of gravity
which are based in the class of generalized Weyl spacetimes—denoted by W 4—where …

In this paper, we discuss on the phenomenological footprints of gauge invariant theories of
gravity where the gravitational effects are due not only to spacetime curvature, but also to …

The motion of water is governed by the Navier–Stokes equations, which are complemented
by the continuity equation to ensure local mass conservation. In this work, we construct the …

We construct a Weyl transverse diffeomorphism invariant theory of teleparallel gravity by
employing the Weyl compensator formalism. The low-energy dynamics has a single spin two …

We show that the definition of proper time for Weyl-invariant space-times given by Perlick
naturally extends to spaces with arbitrary non-metricity. We then discuss the relation …

Determining the number of propagating degrees of freedom in metric-affine theories of
gravity requires the use of Hamiltonian constraint analysis, except in some subclasses of …

In this paper we apply the symmetry principle in order to search for an alternative unified
explanation of several cosmological puzzles such as the present stage of accelerated …