TY  - JOUR
AU  - G. G. Akniyev
TI  - Discrete least squares approximation of piecewise-linear functions by trigonometric polynomials
JO  - Problemy analiza
PY  - 2017
SP  - 3
EP  - 24
VL  - 6
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PA_2017_6_2_a0/
LA  - en
ID  - PA_2017_6_2_a0
ER  -