@Misc{ figgig09, author = { Figalli, Alessio and Gigli, Nicola }, title = { Local semiconvexity of Kantorovich potentials on non-compact manifolds }, journal = { ESAIM Control Optim. Calc. Var. }, year = { 2009 }, pages = { }, URL = { http://cvgmt.sns.it/paper/460/ }, note = { cvgmt preprint} }