From the 1 of 9 linked papers with an AI index.
9 papers
Exploring Hu-Sawicki-like modified gravity with Genetic Algorithms
Chiara De Leo, Elisa Fazzari, Matteo Martinelli +1
The paper uses genetic algorithms to generate and test Hu‑Sawicki‑like f(R) modified‑gravity models against current background cosmological observations, finding only modest deviat…
Investigating -Inflation: background evolution and constraints
Elisa Fazzari, Chiara De Leo, Giovanni Montani +3
In this work, we investigate the possibility of generating an inflationary mechanism within the framework of a metric- modified gravity theory, formulated in the Jordan frame…
On the Metric gravity Viability in Accounting for the Binned Supernovae Data
A. Valletta, G. Montani, M. G. Dainotti +1
In this work, two models of metric gravity in the Jordan frame are investigated as a dynamical description of the late-time cosmic expansion using binned Type Ia Supernovae…
Cosmographic Footprints of Dynamical Dark Energy
Elisa Fazzari, William Giarè, Eleonora Di Valentino
We introduce a novel cosmographic framework to trace the late-time kinematics of the Universe without assuming any underlying dynamics. The method relies on generalized Padé-$(2,1…
Creation of Viscous Dark Energy by the Hubble Flow: Comparison with SNe Ia Master Sample Binned Data
Iolanda Navone, Maria Giovanna Dainotti, Elisa Fazzari +3
We study a family of cosmological models featuring dynamical dark energy (DE), based on the idea that the creation of its constituents arises from the gravitational field of the ex…
The effective running Hubble constant in SNe Ia as a marker for the dark energy nature
E. Fazzari, M. G. Dainotti, G. Montani +1
We propose a new method that reveal the nature of dark energy (DE) evolution. Specifically, the method consists of studying the evolving trend regarding the effective running Hubbl…