16 citations · 16 across the 7 of their papers we have counts for
4 papers · 1 filter
Observational constraints on Diffusion Cosmologies in Unimodular Gravity from DESI DR2
Gabriel Gomez, Guillermo Palma, Norman Cruz
Diffusion functions in unimodular gravity induce a dynamical effective cosmological constant, providing an appealing framework in light of recent DESI observations. In this work, w…
Unimodular Gravity with Arbitrary Diffusion Function: A Dynamical System Reconstruction Approach
Gabriel Gómez, Guillermo Palma, Norman Cruz
We investigate cosmological diffusion models in unimodular gravity within a dynamical systems reconstruction framework. By treating the logarithmic slope of the diffusion sector as…
Thermodynamic constraints and future singularities in Unimodular Gravity driven by phantom and non-phantom fluids
Norman Cruz, Samuel Lepe, Guillermo Palma +1
This work investigates future cosmological singularities in a flat FLRW universe filled with a single barotropic fluid, (), within the framework of unimodular gravity.…
Dissipative Unimodular Gravity: Linking Energy Diffusion to Bulk Viscosity as an Alternative to CDM under DESI DR2 Data
Norman Cruz, Esteban González, Guillermo Palma
In this paper, we perform a theoretical and observational study of the presence of viscosity in the Unimodular Gravity formalism, a pioneering approach that, to the best of our kno…