Next Article in Journal
Numerical Simulation of Pattern Formation on Surfaces Using an Efficient Linear Second-Order Method
Previous Article in Journal
Quasi-Noether Systems and Quasi-Lagrangians
Previous Article in Special Issue
Effect of Quantum Gravity on the Stability of Black Holes
Article Menu

Export Article

Open AccessArticle

Cosmological Consequences of a Parametrized Equation of State

Department of Mathematics, COMSATS University Islamabad Lahore-Campus, Lahore-54000, Pakistan
Division of Human Support System, Faculty of Symbiotic Systems Science, Fukushima University, Fukushima 960-1296, Japan
Department of Statistics, COMSATS University Islamabad, Lahore-Campus, Lahore-54000, Pakistan
Author to whom correspondence should be addressed.
Symmetry 2019, 11(8), 1009;
Received: 24 May 2019 / Revised: 9 July 2019 / Accepted: 16 July 2019 / Published: 5 August 2019
(This article belongs to the Special Issue Cosmological Inflation, Dark Matter and Dark Energy)
PDF [395 KB, uploaded 5 August 2019]


We explore the cosmic evolution of the accelerating universe in the framework of dynamical Chern–Simons modified gravity in an interacting scenario by taking the flat homogeneous and isotropic model. For this purpose, we take some parametrizations of the equation of state parameter. This parametrization may be a Taylor series extension in the redshift, a Taylor series extension in the scale factor or any other general parametrization of ω . We analyze the interaction term which calculates the action of interaction between dark matter and dark energy. We explore various cosmological parameters such as deceleration parameter, squared speed of sound, Om-diagnostic and statefinder via graphical behavior. View Full-Text
Keywords: dynamical Chern–Simons modified gravity; parametrizations; cosmological parameters dynamical Chern–Simons modified gravity; parametrizations; cosmological parameters

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Jawad, A.; Rani, S.; Saleem, S.; Bamba, K.; Jabeen, R. Cosmological Consequences of a Parametrized Equation of State. Symmetry 2019, 11, 1009.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Symmetry EISSN 2073-8994 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top