Grepachevskaya, L. V. Absolute Summierbarkeit von Orthogonalreihen. (Russian) Zbl 0171.32402 Sib. Mat. Zh. 6, 737-774 (1965). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:approximation and series expansion PDFBibTeX XMLCite \textit{L. V. Grepachevskaya}, Sib. Mat. Zh. 6, 737--774 (1965; Zbl 0171.32402)