Best mean approximation of a cosine series with convex coefficients
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1978), pp. 50-55
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@article{IVM_1978_8_a6,
author = {V. \`E. Gheit},
title = {Best mean approximation of a~cosine series with convex coefficients},
journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
pages = {50--55},
year = {1978},
number = {8},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/IVM_1978_8_a6/}
}
V. È. Gheit. Best mean approximation of a cosine series with convex coefficients. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1978), pp. 50-55. http://geodesic.mathdoc.fr/item/IVM_1978_8_a6/