%0 Journal Article %A V. KBISHNAMURTHY %T On the state of a linear operator and its adjoint. %J Mathematische Annalen %D 1960 %P 153-160 %V 141 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1960__141_160804/ %G en %F MAN_1960__141_160804