%0 Journal Article %A Savaré, Giuseppe %T Gradient flows and diffusion semigroups in metric spaces under lower curvature bounds %J Comptes Rendus. Mathématique %D 2007 %P 151-154 %V 345 %N 3 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2007.06.018/ %R 10.1016/j.crma.2007.06.018 %G en %F CRMATH_2007__345_3_151_0