TY  - JOUR
AU  - L. N. Ikhsanov
TI  - Exact estimates of approximation by abstract Kantorovich type operators in terms of the second modulus of continuity
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2020
SP  - 66
EP  - 93
VL  - 491
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2020_491_a4/
LA  - ru
ID  - ZNSL_2020_491_a4
ER  -