%0 Journal Article %A Tamara Bottazzi %A Alejandro Varela %T Unitary subgroups and orbits of compact self-adjoint operators %J Studia Mathematica %D 2017 %P 155-176 %V 238 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm8690-12-2016/ %R 10.4064/sm8690-12-2016 %G en %F 10_4064_sm8690_12_2016