296 citations · 1.1k across the 20 of their papers we have counts for
20 papers
Tolman-Ehrenfest-Klein Law in non-Riemannian geometries
J. A. S. Lima, J. Santos
Heat always flows from hotter to a colder temperature until thermal equilibrium be finally restored in agreement with the usual (zeroth, first and second) laws of thermodynamics. H…
Strong energy condition and the repulsive character of f(R) gravity
Crislane S. Santos, Janilo Santos, Salvatore Capozziello +1
The Raychaudhuri equation enables to examine the whole spacetime structure without specific solutions of Einstein's equations, playing a central role for the understanding of the g…
Cosmology with Hu-Sawicki gravity in Palatini Formalism
B. Santos, M. Campista, J. Santos +1
Cosmological models based on f(R)-gravity may exhibit a natural acceleration mechanism without introducing a dark energy component. In this paper, we investigate cosmological conse…
Cosmological Consequences of Exponential Gravity in Palatini Formalism
M. Campista, B. Santos, J. Santos +1
We investigate cosmological consequences of a class of exponential gravity in the Palatini formalism. By using the current largest type Ia Supernova sample along with determ…
Cosmographic constraints on a class of Palatini f(R) gravity
N. Pires, J. Santos, J. S. Alcaniz
Modified gravity, known as gravity, has presently been applied to Cosmology as a realistic alternative to dark energy. For this kind of gravity the expansion of the Universe…
Gödel-type universes in Palatini f(R) gravity
J. Santos, M. J. Reboucas, T. B. R. F. Oliveira
We examine the question as to whether the Palatini f(R) gravity theories permit space-times in which the causality is violated. We show that every perfect-fluid Gödel-type solution…