68 citations
7 papers
Running vacuum versus Holographic dark energy: a cosmographic comparison
Mehdi Rezaei, Joan Sola Peracaula
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 Running V…
Cosmographic parameters in model-independent approaches
Ahmad Mehrabi, Mehdi Rezaei
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 cosmol…
Comparison between different methods of model selection in cosmology
Mehdi Rezaei, Mohammad Malekjani
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 throug…
Can dark energy be expressed as a power series of the Hubble parameter?
Mehdi Rezaei, Mohammad Malekjani, Joan Sola
In this work we examine the possibility that the dark energy (DE) density, can be dynamical and appear as a power series expansion of the Hubble rate (and its derivatives)…
Structure formation in dark energy cosmologies described by PADE parameterization
Mehdi Rezaei
We study the imprints on the formation of cosmic structures of a particular class of dark energy parameterizations dubbed PADE parameterization. Here we investigate how dark energy…
Observational constraints on the oscillating dark energy cosmologies
Mehdi Rezaei
In this study we combine the background and the growth rate data in order to study the ability of the two oscillating dark energy parameterizations, to fit the observational data.…