TY  - JOUR
AU  - M. G. Esmaganbetov
TI  - Minimization of exact constants in Jackson type inequalities and diameters of functions belonging to $L_2[0,2\pi]$
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2001
SP  - 275
EP  - 280
VL  - 7
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2001_7_1_a16/
LA  - ru
ID  - FPM_2001_7_1_a16
ER  -