Further Extended Theories of Gravitation: Part I

Details Further Extended Theories of Gravitation: Part I Further Extended Theories of Gravitation: Part I

2009-11-15

arxiv.org/abs/0911.2841v2

Int.J.Geom.Meth.Mod.Phys.7:887-898,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages. Some refs added

Scientific paper

10.1142/S0219887810004592 10.114

We shall here propose a class of relativistic theories of gravitation, based on a foundational paper of Ehlers Pirani and Schild (EPS).All "extended theories of gravitation" (also known as f(R) theories) in Palatini formalism are shown to belong to this class. In a forthcoming paper we shall show that this class of theories contains other more general examples. EPS framework helps in the interpretation and solution of these models that however have exotic behaviours even compared to f(R) theories.

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