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A modified gravity theory with time-dependent exponent

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Abstract

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 \(H(t) = A\sqrt R\) 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.

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Authors and Affiliations

  1. Key Laboratory of Numerical Simulation of Sichuan Province, 641112, Neijiang, Sichuan, China

    R. A. El-Nabulsi

  2. College of Mathematics and Information Science, Neijiang Normal University, 641112, Neijiang, Sichuan, China

    R. A. El-Nabulsi

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El-Nabulsi, R.A. A modified gravity theory with time-dependent exponent. Eur. Phys. J. Plus 126, 114 (2011). https://doi.org/10.1140/epjp/i2011-11114-9

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