%0 Journal Article %A Ya. S. Shvartsman %T Invariant subspaces of a dissipative operator and divisors of its characteristic function %J Funkcionalʹnyj analiz i ego priloženiâ %D 1970 %P 85-86 %V 4 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1970_4_4_a15/ %G ru %F FAA_1970_4_4_a15