%0 Journal Article %A V. A. Il'in %T Cesaro, Riesz, and Poisson--Abel summability of Fourier series in the eigenfunctions of the Laplace operator %J Doklady Akademii Nauk %D 1965 %P 765-768 %V 160 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_160_4_a6/ %G ru %F DAN_1965_160_4_a6