by
Gianmassimo Tasinato(ICG, University of Portsmouth)
→
Europe/Stockholm
132:028
132:028
Description
I will discuss cosmological solutions in massive gravity, that are potentially able to describe present day acceleration of the universe. After a review of non-linear massive gravity, I will discuss the techniques that allow to analyze the intriguing behavior of cosmological perturbations around the simplest of such cosmological solutions, presenting new and unexpected results arising at third order in a perturbative expansion.