The aim of this disertation is the study of the evolution of cosmological perturbations, beyond the linear order, in universes characterized by non-zero spatial curvature. In particular, we will obtain the general equations for cosmological fluctuations, in Newtonian approximation and the second-order perturbative solutions. Finally, we will calculate the gravitational skewness of the cosmologiacal fields.
Perturbazioni cosmologiche non lineari in universi curvi
Caputo, Claudia
2016/2017
Abstract
The aim of this disertation is the study of the evolution of cosmological perturbations, beyond the linear order, in universes characterized by non-zero spatial curvature. In particular, we will obtain the general equations for cosmological fluctuations, in Newtonian approximation and the second-order perturbative solutions. Finally, we will calculate the gravitational skewness of the cosmologiacal fields.File in questo prodotto:
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Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/20.500.12608/25841