%0 Journal Article %A Cavagnari, Giulia %A Savaré, Giuseppe %A Sodini, Giacomo Enrico %T Extension of monotone operators and Lipschitz maps invariant for a group of isometries %J Canadian journal of mathematics %D 2025 %P 149-186 %V 77 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X23000846/ %R 10.4153/S0008414X23000846 %F 10_4153_S0008414X23000846