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The effective Equation of State in Palatini cosmology
S. Camera, S. Capozziello, L. Fatibene +1
We investigate how the cosmological Equation of State can be used for scrutinizing extended theories of gravity, in particular, the Palatini gravity. Specifically, the appro…
A cosmographic outlook on dark energy and modified gravity
Salvatore Capozziello, Rocco D'Agostino
The cosmographic technique is a powerful model-independent tool for distinguishing between competing cosmological scenarios. The key strengths and weaknesses of standard cosmograph…
Non-Local Gravity Wormholes
Salvatore Capozziello, Nisha Godani
We consider Non-local Gravity in view to obtain stable and traversable wormhole solutions. In particular, the class of Non-local Integral Kernel Theories of Gravity, with the inver…
Early and late time cosmology: the gravity perspective
Francesco Bajardi, Rocco D'Agostino, Micol Benetti +2
Discrepancies between observations at early and late cosmic epochs, and the vacuum energy problem associated with the interpretation of cosmological constant, are questioning the $…
Investigating dark energy by electromagnetic frequency shifts II: the Pantheon+ sample
Giuseppe Sarracino, Alessandro D. A. M. Spallicci, Salvatore Capozziello
Following results presented in Spallicci et al. (Eur Phys J Plus 137, 2022) by the same authors, we investigate the observed red shift , working under the hypothesis that it mig…
A bias-free cosmological analysis with quasars alleviating tension
Aleksander Łukasz Lenart, Giada Bargiacchi, Maria Giovanna Dainotti +2
Cosmological models and their parameters are widely debated because of theoretical and observational mismatches of the standard cosmological model, especially the current discrepan…