On the rate of pointwise convergence of double Fourier-Legendre series. (English) Zbl 0742.42011
The authoress extends her earlier results in Bull. Pol. Acad. Sci. Math. 33, 267-275 (1985; Zbl 0578.42004) from single to double Fourier-Legendre series.
Reviewer: F.Móricz (Szeged)
MSC:
| 42C10 | Fourier series in special orthogonal functions (Legendre polynomials, Walsh functions, etc.) |
