%0 Journal Article %A Nolan R. Wallach %A Roe Goodman %T Structure and unitary cocycle representations of loop groups and the group of diffeomorphisms of the circle. %J Journal für die reine und angewandte Mathematik %D 1984 %P 69-133 %V 347 %I mathdoc %U http://geodesic.mathdoc.fr/item/JRAM_1984__347_152598/ %F JRAM_1984__347_152598