Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1999_65_3_a16, author = {T. Yu. Kulikova}, title = {On the approximation of functions by a~hyperbolic angle in the $L_2$ metric}, journal = {Matemati\v{c}eskie zametki}, pages = {471--474}, publisher = {mathdoc}, volume = {65}, number = {3}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1999_65_3_a16/} }
T. Yu. Kulikova. On the approximation of functions by a~hyperbolic angle in the $L_2$ metric. Matematičeskie zametki, Tome 65 (1999) no. 3, pp. 471-474. http://geodesic.mathdoc.fr/item/MZM_1999_65_3_a16/
[1] Rzhavinskaya E. V., O priblizhenii funktsii dvukh peremennykh dvumernym uglom klassicheskikh ortogonalnykh polinomov, Dep. VINITI, No 4248-80, VINITI, M., 1980
[2] Runovskii K. V., Nekotorye voprosy teorii priblizhenii, Diss. ... k. f.-m. n., M., 1989
[3] Babenko K. I., Dokl. AN SSSR, 132:2 (1960), 247–250 | MR | Zbl
[4] Bugrov Ya. S., Matem. sb., 64 (106):3 (1964), 410–418 | MR | Zbl
[5] Bugrov Ya. S., Tr. MIAN, 131, Nauka, M., 1974, 25–32 | MR | Zbl