TY  - JOUR
AU  - E. I. Nikol'skaya
TI  - An estimate for the difference of partial sums of expansions of an absolutely continuous function in root functions corresponding to two one-dimensional Schr\"odinger operators with complex-valued potentials in the class $L_1$
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 598
EP  - 612
VL  - 28
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_4_a6/
LA  - ru
ID  - DE_1992_28_4_a6
ER  -