TY  - JOUR
AU  - V. N. Trofimov
TI  - The approximation of functions of certain classes determined by polyharmonic operators, by truncated arithmetic means of partial sums of Fourier series
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1960
VL  - 15
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1960_15_5_a11/
LA  - ru
ID  - RM_1960_15_5_a11
ER  -