Extension of the EGS theorem to metric and Palatini f(R) gravity

2008/11/12 by Valerio Faraoni, Faraoni, Valerio · 1 citation
Physics and Astronomy · #Advanced Differential Geometry Research #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #gr-qc

paper · pdf · doi:10.48550/arxiv.0811.1870

10 pages, latex. Contribution to the anniversary volume "Problems of Modern Cosmology" in honour of Prof. S.D. Odintsov to be published by Tomsk University

arxiv created 2008/11/12 · arxiv updated 2009/12/01

Abstract

By using the equivalence between metric and Palatini f(R) (or "modified") gravities with omega=0, -3/2 Brans-Dicke theories, it is shown that the Ehlers-Geren-Sachs theorem of general relativity is extended to modified gravity. In the case of metric f(R) gravity previously studied, this agrees with previous literature.

Cited by

• THERMODYNAMICS OF EVOLVING LORENTZIAN WORMHOLES AT APPARENT HORIZON IN f(R) THEORY OF GRAVITY

Related

• Unifying Einstein and Palatini gravities
• f(R)theories of gravity
• Palatini Approach to Modified Gravity: f(R) Theories and Beyond
• Equivalence among frames in extended gravity
• The Palatini formalism of the f(R,L_m,T) theory of gravity