TY - JOUR AU - John Lott AU - Cedric Villani TI - Ricci curvature for metric-measure spaces via optimal transport JO - Annals of mathematics PY - 2009 SP - 903 EP - 991 VL - 169 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.169.903/ DO - 10.4007/annals.2009.169.903 LA - en ID - 10_4007_annals_2009_169_903 ER -