Extension of the EGS theorem to metric and Palatini f(R) gravity
classification
🌀 gr-qc
keywords
gravitymetricmodifiedpalatinitheoremagreesbrans-dickecase
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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.
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