12 citations · 29 across the 5 of their papers we have counts for
5 papers
Viscosity in Isotropic Cosmological Backgrounds in General Relativity and Starobinsky Gravity
Eliseo Pavone, Luigi Tedesco
We present a general analysis of the role of shear viscosity in cosmological backgrounds, focusing on isotropic space-time in both Einstein and gravity. By computing the div…
Constraints on the Pre-Big Bang scenario from a cosmological interpretation of the NANOGrav data
P. Conzinu, G. Fanizza, M. Gasperini +3
We discuss a recently proposed fit of the 15-year data set obtained from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) in terms of a relic stochastic…
Ellipsoidal Universe and Cosmic Shear
Luigi Tedesco
We consider a Bianchi I geometry of the Universe. We obtain a cosmic shear expression related with the eccentricity of the Universe. In particular we study the connection among cos…
Inhomogeneous and anisotropic Universe and apparent acceleration
G. Fanizza, L. Tedesco
In this paper we introduce a LTB-Bianchi I (plane symmetric) model of Universe. We study and solve Einstein field equations. We investigate the effects of such model of Universe in…
Cosmic acceleration and theory: perturbed solution in a matter FLRW model
L. Cosmai, G. Fanizza, L. Tedesco
In the present paper we consider gravity theories in the metric approach and we derive the equations of motion, focusing also on the boundary conditions. In such a way we ap…