TY  - JOUR
AU  - Nurlan S. Imanbaev
TI  - On a problem that does not have basis property of root vectors, associated with a perturbed regular operator of multiple differentiation
JO  - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika
PY  - 2020
SP  - 568
EP  - 573
VL  - 13
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JSFU_2020_13_5_a4/
LA  - en
ID  - JSFU_2020_13_5_a4
ER  -