%0 Journal Article %A Coburn, Lewis A. %A Douglas, Ronald G. %A Schaeffer, David G. %A Singer, Isadore M. %T $C^\ast $-algebras of operators on a half-space, II. Index theory %J Publications Mathématiques de l'IHÉS %D 1971 %P 69-79 %V 40 %I Institut des Hautes Études Scientifiques %U http://www.numdam.org/item/PMIHES_1971__40__69_0/ %G en %F PMIHES_1971__40__69_0