f(R) cosmology by Noether's symmetry

Capozziello, Salvatore;De Felice, Antonio
(2008) Journal of Cosmology and Astroparticle Physics — Vol. 2008, p. 16 (2008)

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Authors
  • Capozziello, Salvatore
    Author
  • De Felice, AntonioUCLouvain
    Author
Abstract
(en) A general approach to find out exact cosmological solutions in f(R)-gravity is discussed. Instead of taking into account phenomenological models, we assume, as a physical criterium, the existence of Noether symmetries in the cosmological f(R) Lagrangian. As a result, the presence of such symmetries selects viable models and allow to solve the equations of motion. We discuss also the case in which no Noether charge is present but general criteria can be used to achieve solutions. Comment: 23 pages, uses RevTeX
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Citations

Capozziello, S., & De Felice, A. (2008). f(R) cosmology by Noether’s symmetry. Journal of Cosmology and Astroparticle Physics, 2008, 16. https://doi.org/10.1088/1475-7516/2008/08/016 (Original work published 2008)