https://doi.org/10.1140/epjp/i2011-11114-9
Regular Article
A modified gravity theory with time-dependent exponent
1
Key Laboratory of Numerical Simulation of Sichuan Province, 641112, Neijiang, Sichuan, China
2
College of Mathematics and Information Science, Neijiang Normal University, 641112, Neijiang, Sichuan, China
* e-mail: nabulsiahmadrami@yahoo.fr
Received:
28
July
2011
Revised:
11
September
2011
Accepted:
30
September
2011
Published online:
22
November
2011
In this work, we discussed the cosmological consequences of a modified gravity theory characterized by f(R) = R
n(t) where n(t) = 1 + B(t − t
0)
ε
, B and ε are free parameters in the theory and a Hubble parameter which varies as 
where A is a real positive parameter. For some explicit and reasonable values of the free parameters of the theory, our proposal contains several novel features which were discussed in some details.
© Società Italiana di Fisica and Springer, 2011
