Fourier series in orthonormalized matrix polynomials. (English. Russian original) Zbl 0714.42019
Sov. Math. 32, No. 2, 71-83 (1988); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1988, No. 2(309), 50-60 (1988).
See the review in Zbl 0661.42016.
MSC:
42C10 | Fourier series in special orthogonal functions (Legendre polynomials, Walsh functions, etc.) |
42A24 | Summability and absolute summability of Fourier and trigonometric series |