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oai:docta.ucm.es:20.500.14352/720532023-08-26T09:20:50Zcom_20.500.14352_14col_20.500.14352_15

Olmo, Gonzalo J. Rubiera García, Diego 2023-06-22T11:03:21Z 2023-06-22T11:03:21Z 2022-05 0218-2718 10.1142/S0218271822400120 https://hdl.handle.net/20.500.14352/72053 http://dx.doi.org/10.1142/S0218271822400120 https://www.worldscientific.com/ In this paper, metric-afline theories in which the gravity Lagrangian is built using (projectively invariant) contractions of the Ricci tensor with itself and with the metric (Ricci-based gravity theories, or RBGs for short) are reviewed. The goal is to provide a contextualized and coherent presentation of some recent results. In particular, we focus on the correspondence that exists between the field equations of these theories and those of general relativity, and comment on how this can be used to build new solutions of physical interest. We also discuss the formalism of junction conditions in the f (R) case, and provide a brief summary on current experimental and observational bounds on model parameters. eng open access Some recent results on Ricci-based gravity theories journal article