Geodesic
Summation of orthogonal series by linear methods
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 22 (1967) no. 2 
A. V. Efimov. Summation of orthogonal series by linear methods. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 22 (1967) no. 2. http://geodesic.mathdoc.fr/item/RM_1967_22_2_a17/
@article{RM_1967_22_2_a17,
     author = {A. V. Efimov},
     title = {Summation of orthogonal series by linear methods},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1967},
     volume = {22},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1967_22_2_a17/}
}
TY  - JOUR
AU  - A. V. Efimov
TI  - Summation of orthogonal series by linear methods
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1967
VL  - 22
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/RM_1967_22_2_a17/
LA  - ru
ID  - RM_1967_22_2_a17
ER  - 
%0 Journal Article
%A A. V. Efimov
%T Summation of orthogonal series by linear methods
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1967
%V 22
%N 2
%U http://geodesic.mathdoc.fr/item/RM_1967_22_2_a17/
%G ru
%F RM_1967_22_2_a17

Voir la notice de l'article provenant de la source Math-Net.Ru

[1] G. Aleksich, Problemy skhodimosti ortogonalnykh ryadov, IL, M., 1963 | MR

[2] G. Alexits, D. Kralik, “Über approximationen mit den arithmetischen Mitteln allgemeiner Orthogonalreihen”, Acta Math. Acad. Sci. Hung., 11 (1960), 387–399 | DOI | MR | Zbl

[3] L. Leindler, “Über die Rieszschen Mittel allgemeiner Orthogonalreihen”, Acta Sci. Math., 24 (1963), 129–138 | MR