126 citations · 456 across the 9 of their papers we have counts for
9 papers
Generalized LTB model with Inhomogeneous Isotropic Dark Energy: Observational Constraints
J. Grande, L. Perivolaropoulos
We consider on-center and off-center observers in an inhomogeneous, spherically symmetric, isocurvature (flat) concentration of dark energy with typical size of a few Gpc. Such a c…
Hubble expansion and structure formation in the "running FLRW model" of the cosmic evolution
Javier Grande, Joan Sola, Spyros Basilakos +1
A new class of FLRW cosmological models with time-evolving fundamental parameters should emerge naturally from a description of the expansion of the universe based on the first pri…
Cosmic perturbations with running G and Lambda
Javier Grande, Joan Sola, Julio C. Fabris +1
Cosmologies with running cosmological term (Lambda) and gravitational Newton's coupling (G) may naturally be expected if the evolution of the universe can ultimately be derived fro…
Dark energy perturbations and a possible solution to the coincidence problem
Javier Grande, Ana Pelinson, Joan Sola
We analyze some generic properties of the dark energy (DE) perturbations, in the case of a self-conserved DE fluid. We also apply a simple test (the "F-test") to compare a model to…
Dark energy perturbations and cosmic coincidence
Javier Grande, Ana Pelinson, Joan Sola
While there is plentiful evidence in all fronts of experimental cosmology for the existence of a non-vanishing dark energy (DE) density ρ_D in the Universe, we are still far away f…
Cosmologies with variable parameters and dynamical cosmon: implications on the cosmic coincidence problem
Javier Grande, Joan Sola, Hrvoje Stefancic
Dynamical dark energy (DE) has been proposed to explain various aspects of the cosmological constant (CC) problem(s). For example, it is very difficult to accept that a strictly co…