%0 Journal Article %A Sorin Popa %T Some properties of the symmetric enveloping algebra of a subfactor, with applications to amenability and property $T$ %J Documenta mathematica %D 1999 %P 665-744 %V 4 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/71/ %R 10.4171/dm/71 %F 10_4171_dm_71