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 …

Searching for violations of the no-hair theorem (NHT) is a powerful way to test gravity, and
more generally fundamental physics, particularly with regards to the existence of additional …

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 …

We provide a refined and much more simplified Einstein–Gauss–Bonnet inflationary
theoretical framework, which is compatible with the GW170817 observational constraints on …

In this work we introduce a new theoretical framework for Einstein-Gauss-Bonnet theories of
gravity, which results to particularly elegant, functionally simple and transparent gravitational …

In the present paper, we use the holographic approach to describe the early-time
acceleration and the late-time acceleration eras of our Universe in a unified manner. Such …

Abstract We revisit the Einstein-Gauss-Bonnet theory in view of the GW170817 event, which
compels that the gravitational wave speed is equal to c T 2= 1 in natural units. We use an …

Recently, there has been a surge of interest in the 4D Einstein-Gauss-Bonnet (4D EGB)
gravity theory which bypasses the Lovelock theorem and avoids Ostrogradsky's instability …

In this work we shall calculate in detail the effect of an GW170817-compatible Einstein–
Gauss–Bonnet theory on the energy spectrum of the primordial gravitational waves. The …