The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

We consider the metric-affine formulation of bumblebee gravity, derive the field equations,
and show that the connection can be written as Levi-Civita of a disformally related metric in …

We present the nonrelativistic limit of the stellar structure equations of Ricci-based gravities,
a family of metric-affine theories whose Lagrangian is built via contractions of the metric with …

Many theories of gravity are spoiled by strongly coupled modes: the high computational cost
of Hamiltonian analysis can obstruct the identification of these modes. A computer algebra …

We study inflation with the most general non-degenerate gravitational action that depends
on the symmetric part of the Ricci tensor coupled to a scalar field in the Palatini formulation …

By using a novel technique that establishes a correspondence between general relativity
and metric-affine theories based on the Ricci tensor, we are able to set stringent constraints …

We discuss generalizations of the notions of projective transformations acting on affine
model of Riemann–Cartan and Riemann–Cartan–Weyl gravity which preserve the projective …

In this paper, metric-affine theories in which the gravity Lagrangian is built using (projectively
invariant) contractions of the Ricci tensor with itself and with the metric (Ricci-based gravity …

We study the correspondence that connects the space of solutions of general relativity (GR)
with that of Ricci-based gravity theories (RBGs) of the f (R, Q) type in the metric-affine …

Motivated by the lack of rotating solutions sourced by matter in General Relativity as well as
in modified gravity theories, we extend a recently discovered exact rotating solution of the …