%0 Journal Article %A Bigot, Jérémie %A Klein, Thierry %T Characterization of barycenters in the Wasserstein space by averaging optimal transport maps %J ESAIM: Probability and Statistics %D 2018 %P 35-57 %V 22 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ps/2017020/ %R 10.1051/ps/2017020 %G en %F PS_2018__22__35_0