Cosmology with the Baryon Oscillation Spectroscopic Survey
I will present the most recent results from the SDSS-III BOSS-DR12 analysis. I will focus on the analysis of the power spectrum multipoles, which allows to constrain the growth of structure through redshift-space distortions. Such measurements can be used to test GR and measure the sum of the neutrino masses. Beside RSD we also constrain the geometry of the Universe through the Alcock-Paczynski effect and Baryon Acoustic Oscillations.