299 citations · 488 across the 26 of their papers we have counts for
8 papers · 1 filter
On the Physical Nature of the Scalar Mode Mass in the Jordan frame of a Metric gravity
Giovanni Montani, Andrea Valletta
We analyze the Taylor expansion of metric gravity in the Jordan frame around the General Relativity limit. By relating the scalar--tensor representation to the original $f(R…
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…
Running Hubble constant: evolutionary Dark Energy
Giovanni Montani, Nakia Carlevaro, Maria G. Dainotti
We discuss an evolutionary dark energy model, based on the presence of non-equilibrium effects on the dark energy constituents, which are described via a bulk viscosity contributio…
Modified gravity in the presence of matter creation: scenario for the late Universe
Giovanni Montani, Nakia Carlevaro, Mariaveronica De Angelis
We consider a dynamic scenario for characterizing the late Universe evolution, aiming to mitigate the Hubble tension. Specifically, we consider a metric gravity in the Jorda…
Evolution of an effective Hubble constant in modified gravity
Tiziano Schiavone, Giovanni Montani
We investigate the Hubble constant tension within modified gravity in the Jordan frame, focusing on its application to the dynamics of an isotropic Universe. A scalar field,…
Kinetic Model for Dark Energy - Dark Matter Interaction: Scenario for the Hubble Tension
Giovanni Montani, Nakia Carlevaro, Luis A. Escamilla +1
We analyze a model for Dark Energy - Dark Matter interaction, based on a decaying process of the former into the latter. The dynamical equations are constructed following a kinetic…