Copyright © 2013 José Antonio Belinchón. 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.

Linked References

1. S. Nojiri and S. D. Odintsov, “Unified cosmic history in modified gravity: from $f(R)$ theory to Lorentz non-invariant models,” Physics Reports, vol. 505, no. 2–4, pp. 59–144, 2011. View at Publisher · View at Google Scholar
2. T. Clifton, P. G. Ferreira, A. Padilla, and C. Skordis, “Modified gravity and cosmology,” Physics Reports, vol. 513, no. 1–3, pp. 1–189, 2012. View at Publisher · View at Google Scholar
3. L. Amendola and S. Tsujikawa, Dark Energy. Theory and Observations, CUP, Cambridge, UK, 2010.
4. S. Capozziello and V. Faraoni, Beyond Einstein Gravity: A Survey of Gravitational Theories for Cosmology and Astrophysics, Springer, New York, NY, USA, 2011.
5. J. A. Belinchón, “Generalized self-similar scalar-tensor theories,” The European Physical Journal, vol. 72, p. 1866, 2012. View at Publisher · View at Google Scholar
6. V. Faraoni, Cosmology in Scalar-Tensor Gravity, Kluwer Academic, Dordrecht, The Netherlands, 2004. View at Zentralblatt MATH
7. S. Nojiri and S. D. Odintsov, “Modified gravity and its reconstruction from the universe expansion history,” Journal of Physics: Conference Series, vol. 66, Article ID 012005, 2007. View at Publisher · View at Google Scholar
8. S. Nojiri and S. D. Odintsov, “Modified gravity as an alternative for ΛCDM cosmology,” Journal of Physics A, vol. 40, no. 25, p. 6725, 2007. View at Publisher · View at Google Scholar
9. G. Cognola, E. Elizalde, S. Nojiri, S. D. Odintsov, L. Sebastiani, and S. Zerbini, “Class of viable modified $f(R)$ gravities describing inflation and the onset of accelerated expansion,” Physical Review D, vol. 77, Article ID 046009, 11 pages, 2008. View at Publisher · View at Google Scholar
10. A. De Felice and S. Tsujikawa, “$f(R)$ Theories,” Living Reviews in Relativity, vol. 13, p. 3, 2010.
11. G. W. Bluman and S. C. Anco, Symmetry and Integration Methods for Differential Equations, Springer, New York, NY, USA, 2002.
12. G. Hall, Symmetries and Curvature in General Relativity, Lecture Notes in Physics, World Scientific, River Edge, NJ, USA, 2004.
13. B. J. Carr and A. A. Coley, “Self-similarity in general relativity,” Classical and Quantum Gravity, vol. 16, no. 7, p. R31, 1999. View at Publisher · View at Google Scholar
14. K. Rosquist and R. T. Jantzen, “Spacetimes with a transitive similarity group,” Classical and Quantum Gravity, vol. 2, no. 6, pp. L129–L133, 1985. View at Publisher · View at Google Scholar · View at Scopus
15. A. A. Coley, Dynamical Systems and Cosmology, Kluwer Academic, Dordrecht, The Netherlands, 2003.
16. J. Wainwright and G. F. R. Ellis, Dynamical Systems in Cosmology, CUP, Cambridge, UK, 1997.
17. J.-C. Hwang, “Unified analysis of cosmological perturbations in generalized gravity,” Physical Review D, vol. 53, no. 2, pp. 762–765, 1996. View at Publisher · View at Google Scholar
18. F. Perrotta, C. Baccigalupi, and S. Matarrese, “Extended quintessence,” Physical Review D, vol. 61, no. 2, Article ID 023507, 1999.
19. N. Goheer, J. Larena, and P. K. S. Dunsby, “Power-law cosmic expansion in $f(R)$ gravity models,” Physical Review D, vol. 80, no. 6, Article ID 061301, 4 pages, 2009. View at Publisher · View at Google Scholar