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f(R) and f(T) theories of modified gravity

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arxiv 1204.6273 v2 pith:PR3NTAAU submitted 2012-04-27 gr-qc astro-ph.CO

Rafael Ferraro This is my paper
classification gr-qcastro-ph.CO
keywords theoriesgravitymodifiedreviewabsenceadditionalapplicationsapproach
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We briefly review f(R) theories, both in the metric and Palatini formulations, their scalar-tensor representations and the chameleon mechanism that could explain the absence of perceptible consequences in the Solar System. We also review f(T) theories, a different approach to modified gravity consisting in a deformation of the teleparallel equivalent of General Relativity. We show some applications to cosmology and cosmic strings. As f(R)'s, f(T) theories are not exempted from additional degrees of freedom; we also discuss this still open issue.

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Cited by 1 Pith paper

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  1. Epicyclic oscillations and accretion disk around a special Buchdahl-inspired spacetime

    gr-qc 2025-07 conditional novelty 4.0 of 10

    The Buchdahl-inspired metric shifts the ISCO inward for positive k tilde and produces QPO and disk profiles that the authors fit to microquasar data, claiming 0.03<k<0.19.

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