TY - JOUR AU - E. I. Nikol'skaya TI - 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 JO - Differencialʹnye uravneniâ PY - 1994 SP - 60 EP - 69 VL - 30 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1994_30_1_a6/ LA - ru ID - DE_1994_30_1_a6 ER -