@Article{ 
  CavSavSod23a,
  author = { Cavagnari, Giulia and Savaré, Giuseppe and Sodini, Giacomo Enrico },
  title = { Extension of monotone operators and Lipschitz maps invariant for a group  of isometries },
  journal = { Canadian Journal of Mathematics },
  year = { 2023 },
  doi = { 10.4153/S0008414X23000846 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6035/ },
  note = { cvgmt preprint}
}