%0 Journal Article %A N. K. Nikol'skii %A B. S. Pavlov %T Expansions in characteristic vectors of nonunitary operators and the characteristic vectors of nonunitary operators and the characteristic function %J Zapiski Nauchnykh Seminarov POMI %D 1968 %P 150-203 %V 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1968_11_a4/ %G ru %F ZNSL_1968_11_a4