In this paper, we attempt to explore the possibility of a obtaining a viable emergent universe
scenario supported by a type of fluid known as the extended Chaplygin gas, which extends …

A nonlocal gravity model (2) was introduced and considered recently, and two exact
cosmological solutions in flat space were presented. The first solution is related to some …

First, we propose a scale-invariant modified gravity interacting with a neutral scalar inflaton
and a Higgs-like SU (2)× U (1) iso-doublet scalar field based on the formalism of non …

We study inflation driven by the tachyon field in the holographic braneworld by assuming the
second slow-roll parameter η is constant. The parameter η can be either defined by the …

Our primary objective is to construct a plausible, unified model of inflation, dark energy and
dark matter from a fundamental Lagrangian action first principle, wherein all fundamental …

The swampland conjectures from string theory have had some really interesting implications
on cosmology, in particular on inflationary models. Some models of inflation have been …

By adopting the intermediate and power-law scale factors, we study the tachyon inflation
with constant sound speed. We perform some numerical analysis on the perturbation and …

We study the intermediate tachyon inflation in an anisotropic background. By using the
Friedmann equations obtained in the anisotropic geometry, we obtain the slow-roll …

Classifying inflationary scenarios according to their scaling properties is a powerful way to
connect theory with observations. A useful tool to make such a classification is the β-function …

We study inflation in a model with constant second slow-roll parameter $\eta $. In this case,
the Hubble expansion rate equation has analytical solutions describing four possible …