On convergence factors of Fourier series in ultraspherical functions on a sphere
English version (Springer): Ukrainian Mathematical Journal 32 (1980), no. 4, pp 561–566.
Citation Example: Pandei On convergence factors of Fourier series in ultraspherical functions on a sphere // Ukr. Mat. Zh. - 1980. - 32, № 4. - pp. 561–566.
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