G. I. Furletov, “The equivalence of the $T_s(\alpha,\lambda_k)$ methods, $s>0$, the Cesàro and Riesz methods of arbitrary positive order, and Abel's method, for Fourier series in fundamental function systems of Laplace's operator”, Differ. Uravn., 1970, Volume 6, Number 6,Pages 1086

The equivalence of the $T_s(\alpha,\lambda_k)$ methods, $s>0$, the Cesàro and Riesz methods of arbitrary positive order, and Abel's method, for Fourier series in fundamental function systems of Laplace's operator

G. I. Furletov

Lomonosov Moscow State University

UDC: 517.95:517.974.52

Received: 19.06.1969