We review recent trends in inflationary dynamics in the context of viable modified gravity
theories. After providing a general overview of the inflationary paradigm emphasizing on …

We review the topic of 4D Einstein–Gauss–Bonnet (4DEGB) gravity, which has been the
subject of considerable interest over the past two years. Our review begins with a general …

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 …

A bstract We comment on the recently introduced Gauss-Bonnet gravity in four dimensions.
We argue that it does not make sense to consider this theory to be defined by a set of D→ 4 …

Recently, a novel 4D Einstein–Gauss–Bonnet gravity was formulated by Glavan and Lin
(Phys Rev Lett 124 (8): 081301, 2020). Although whether the theory is well defined is …

We provide a theoretical model of F (R) gravity in which it is possible to describe in a unified
way inflation, an early and a late dark energy era, in the presence of a light axion particle …

Recently there has been a surge of interest in regularizing, a D→ 4 limit of, the Einstein-
Gauss-Bonnet (EGB) gravity, and the resulting regularized 4D EGB gravity has nontrivial …

We propose a regularization procedure for the novel Einstein-Gauss-Bonnet theory of
gravity, which produces a set of field equations that can be written in closed form in four …

We investigate the D→ 4 limit of the D-dimensional Einstein-Gauss-Bonnet gravity, where
the limit is taken with α˜=(D− 4) α kept fixed and α is the original Gauss-Bonnet coupling …

Recently, a non-trivial 4D Einstein-Gauss-Bonnet (EGB) theory of gravity, by rescaling the
GB coupling parameter as α/(D− 4), was formulated in [1], which bypasses Lovelock's …