This article is intended to review the recent developments in the Horndeski theory and its
generalization, which provide us with a systematic understanding of scalar–tensor theories …

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

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 review recent developments and results in testing general relativity (GR) at cosmological
scales. The subject has witnessed rapid growth during the last two decades with the aim of …

We investigate the observational consequences of a novel class of stable interacting dark
energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE) …

Given the proliferation of bouncing models in recent years, we gather and critically assess
these proposals in a comprehensive review. The PLANCK data shows an unmistakably red …

Mimetic gravity is a Weyl‐symmetric extension of General Relativity, related to the latter by a
singular disformal transformation, wherein the appearance of a dust‐like perfect fluid can …

We perform a Hamiltonian analysis of a large class of scalar-tensor Lagrangians which
depend quadratically on the second derivatives of a scalar field. By resorting to a convenient …

We investigate inflation within f (R, ϕ) f (R, ϕ)-theories, where a dynamical scalar field is
coupled to gravity. A class of models which can support early-time acceleration with the …

We study how a cosmological bounce, with a type IV singularity at the bouncing point, can
be generated by a classical vacuum F (G) gravity. We focus our investigation on the …