Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …

In this work, we study different types of dark energy (DE) models in the framework of the
cosmographic approach, with emphasis on the running vacuum models (RVMs). We assess …

The cosmographic approach, a Taylor expansion of the Hubble function, has been used as
a model-independent method to investigate the evolution of the universe in the presence of …

In the context of a cosmography approach to using the data of the Hubble diagram for
supernovae, quasars, and gamma-ray bursts, we study dark energy (DE) parameterizations …

This study investigates accelerated cosmic expansion using the Viscous Modified Chaplygin
Gas (VMMG) and Generalized Cosmic Chaplygin Gas (GCCM) within Horava–Lifshitz …

In this work, we examine the possibility that the dark energy (DE) density, ρ de, can be
dynamical and appear as a power series expansion of the Hubble rate (and its time …

There are several methods for model selection in cosmology which have at least two major
goals, that of finding the correct model or predicting well. In this work, we discuss through a …

We perform a comparative study of different types of dynamical dark energy models (DDEs)
using the cosmographic method. Among the models being examined herein we have the …

We investigate the dark energy phenomenology in an extended parameter space where we
allow the curvature density of our universe as a free-to-vary parameter. The inclusion of the …

In this paper, we have performed a comparative study of different types of oscillating dark
energy (DE) models using the Metropolis algorithm of Markov Chain Monte Carlo. Eight …