Geodesic
The order of approximation in the strong sense of periodic functions of two variables by Fourier sums and by certain interpolation sums
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1970), pp. 43-49 Cet article a éte moissonné depuis la source Math-Net.Ru

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@article{IVM_1970_3_a6,
     author = {V. V. Lipovik},
     title = {The order of approximation in the strong sense of periodic functions of two variables by {Fourier} sums and by certain interpolation sums},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {43--49},
     year = {1970},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1970_3_a6/}
}
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JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
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EP  - 49
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%A V. V. Lipovik
%T The order of approximation in the strong sense of periodic functions of two variables by Fourier sums and by certain interpolation sums
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1970
%P 43-49
%N 3
%U http://geodesic.mathdoc.fr/item/IVM_1970_3_a6/
%G ru
%F IVM_1970_3_a6
V. V. Lipovik. The order of approximation in the strong sense of periodic functions of two variables by Fourier sums and by certain interpolation sums. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1970), pp. 43-49. http://geodesic.mathdoc.fr/item/IVM_1970_3_a6/