B. A. Vostretsov, A. V. Ignat'eva, “The existence in the <nobr>$L_p$</nobr> metric of the best approximation of functions by sums of a finite number of plane waves of given directions”, Dokl. Akad. Nauk SSSR, 1967, Volume 176, Number 6,Pages <nobr>1225

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

UDC: 517.514

Presented: I. G. Petrovskii
Received: 27.12.1966