https://doi.org/10.1140/epjp/i2015-15094-4
Regular Article
Energy conditions in f (T, TG) gravity
Department of Mathematics, COMSATS Institute of Information Technology, Lahore, Pakistan
* e-mail: abduljawad@ciitlahore.edu.pk
Received:
12
December
2014
Revised:
27
March
2015
Accepted:
8
April
2015
Published online:
19
May
2015
This paper is devoted to study the energy conditions in f(T, T
G
) gravity for the FRW universe with perfect fluid, where T is the torsion scalar and T
G
is the quartic torsion scalar. We construct the energy conditions in this theory and discuss them for two specific f(T, T
G
) models. These models are and
, which represent viability through some cosmological scenarios. We consider cosmographic parameters to simplify the energy condition expressions. The present-day values of these parameters are assumed to check the constraints on model parameters through energy condition inequalities.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2015