%0 Journal Article %A Cornulier, Yves de %A Tessera, Romain %T Isometric Group Actions on Hilbert Spaces: Structure of Orbits %J Canadian journal of mathematics %D 2008 %P 1001-1009 %V 60 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2008-044-4/ %R 10.4153/CJM-2008-044-4 %F 10_4153_CJM_2008_044_4