6 citations · 7 across the 4 of their papers we have counts for
4 papers
Spatial curvature in Unimodular Gravity
Gilberto Aguilar-Pérez, Miguel Cruz, Samuel Lepe
We investigate the cosmological implications of unimodular gravity (UG) featuring energy diffusion and spatial curvature. While standard diffusion models often suffer from thermody…
Cosmological evolution driven by polytropic fluids in an inhomogeneous spacetime
Gilberto Aguilar-Pérez, Miguel Cruz, Mohsen Fathi +2
Addressing the late-time accelerated expansion of the universe, known as the "dark energy problem", remains a central challenge in cosmology. While the cosmological constant is the…
Exploring the cosmological degeneracy between decaying dark matter model and viscous CDM
Gilberto Aguilar-Pérez, Ana A. Avilez-López, Miguel Cruz
In the context of a homogeneous and isotropic universe, we consider the degeneracy condition at the background level between two scenarios in which processes out of equilibrium are…
Qualitative analysis for viscous cosmologies in a non linear regime of the Israel-Stewart formalism
Gilberto Aguilar-Pérez, Ana A. Avilez-López, Miguel Cruz
We explore the dynamical properties of a cosmological model that includes viscous effects in the dark matter sector of the fluid equations in a flat Friedmann-Lemaitre-Robertson-Wa…