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00925njm 22002777a 4500 dc Bekov, Sabit author Myrzakulov, Kairat author Myrzakulov, Ratbay author Saez Gómez, Diego author 2020 Slow-roll inflation is analyzed in the context of modified gravity within the Palatini formalism. As shown in the literature, inflation in this framework requires the presence of non-traceless matter; otherwise, it does not occur just as a consequence of the nonlinear gravitational terms of the action. Nevertheless, by including a single scalar field that plays the role of the inflaton, slow-roll inflation can be performed in these theories, where the equations lead to an effective potential that modifies the dynamics. We obtain the general slow-roll parameters and analyze a simple model to illustrate the differences introduced by the gravitational terms under the Palatini approach, and the modifications on the spectral index and the tensor to scalar ratio predicted by the model. Symmetry, 2020, Vol. 12, Nº. 12, 1958 2073-8994 https://uvadoc.uva.es/handle/10324/58839 10.3390/sym12121958 1958 12 Symmetry 12 2073-8994 Inflación Gravitation General slow-roll Inflation in f(R) gravity under the Palatini approach