科研之友
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摘要
In this work, we consider the Palatini f(R) gravity theory with the matter dominated universe. Utilizing the dynamical equivalence between Palatini f(R) gravity and Brans-Dicke like scalar tensor theory, we obtain a point-like Lagrangian for the locally rotational symmetric Bianchi I space time. We determine the physically interesting functional forms of f(R) for this Lagrangian via Noether symmetry approach. We also explore some cosmological solutions of the field equations using these forms obtained by the existence of Noether symmetry. It is shown that these solutions are consistent with the accelerated behavior of the universe.
- 出版日期2016-2
