%0 Journal Article %A A. S. Holevo %T On conditions for an operator to be in the class~$\mathscr{S}_{p}$ %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2020 %P 193-195 %V 75 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2020_75_1_a5/ %G en %F RM_2020_75_1_a5