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MATHEMATICS
The existence in the $L_p$ metric of the best approximation of functions by sums of a finite number of plane waves of given directions
B. A. Vostretsov, A. V. Ignat'eva
Citation:
B. A. Vostretsov, A. V. Ignat'eva, “The existence in the $L_p$ metric of the best approximation of functions by sums of a finite number of plane waves of given directions”, Dokl. Akad. Nauk SSSR, 176:6 (1967), 1225–1228
Linking options:
https://www.mathnet.ru/eng/dan33407 https://www.mathnet.ru/eng/dan/v176/i6/p1225
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