TY  - JOUR
AU  - G. G. Akniev
TI  - Approximation of continuous $2\pi$-periodic piecewise smooth functions by discrete Fourier sums
JO  - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics
PY  - 2019
SP  - 4
EP  - 15
VL  - 19
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ISU_2019_19_1_a0/
LA  - en
ID  - ISU_2019_19_1_a0
ER  -