Fil’chakova, V. P. On a generalized orthogonality of discrete argument trigonometrical functions. (Ukrainian) Zbl 0207.16005 Dopov. Akad. Nauk Ukr. RSR, Ser. A 1968, 1011-1016 (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 65D99 Numerical approximation and computational geometry (primarily algorithms) 42A15 Trigonometric interpolation PDF BibTeX XML Cite \textit{V. P. Fil'chakova}, Dopov. Akad. Nauk Ukr. RSR, Ser. A 1968, 1011--1016 (1968; Zbl 0207.16005)