Astrophysics and Space Science

, Volume 356, Issue 1, pp 173–180 | Cite as

Cosmological viable f(R,T) dark energy model: dynamics and stability

  • E. H. Baffou
  • A. V. Kpadonou
  • M. E. Rodrigues
  • M. J. S. Houndjo
  • J. Tossa
Original Article


In this paper we undertake the modified theory of gravity f(R,T), where R and T are the Ricci scalar and the trace of the energy momentum tensor, respectively. Imposing the conservation of the energy momentum tensor, we obtain a model about what dynamics and stability are studied. The stability is developed using the de Sitter and power-law solutions. The results show that the model presents stability for both the de Sitter and power-law solutions. Regarding the dynamics, cosmological solutions are obtained by integrating the background equations for both the low-redshift and high-redshift regimes and are consistent with the observational data.


f(R,T) gravity Dynamics Stability 



The authors thank Prof. S.D. Odintsov for useful comments and suggestions. E.H. Baffou thanks IMSP for every kind of support during the realization of this work.


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • E. H. Baffou
    • 1
  • A. V. Kpadonou
    • 1
    • 2
  • M. E. Rodrigues
    • 3
  • M. J. S. Houndjo
    • 1
    • 2
  • J. Tossa
    • 1
  1. 1.Institut de Mathématiques et de Sciences Physiques (IMSP)Porto-NovoBenin
  2. 2.Ecole Normale Supérieure de NatitingouUniversité de ParakouParakouBenin
  3. 3.Faculdade de Ciências Exatas e TecnologiaUniversidade Federal do Pará – Campus Universitário de AbaetetubaParáBrazil

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