%0 Journal Article %A E. I. Nikol'skaya %T A component-wise estimate for the difference of partial sums of root vector function expansions, which correspond to two Schr\"odinger operators with non-Hermitian matrix potentials, for vector functions with monotone components %J Differencialʹnye uravneniâ %D 1994 %P 60-69 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_1_a6/ %G ru %F DE_1994_30_1_a6