%0 Journal Article %A Gerard Besson %A Sylvestre Gallot %T On Scalar and Ricci Curvatures %J Symmetry, integrability and geometry: methods and applications %D 2021 %V 17 %U http://geodesic.mathdoc.fr/item/SIGMA_2021_17_a45/ %G en %F SIGMA_2021_17_a45