%0 Journal Article %A M. G. Magomed-Kasumov %A S. R. Magomedov %T Fast Fourier transform in a system of functions that are orthogonal in the sense of Sobolev and generated by the Walsh system %J Daghestan Electronic Mathematical Reports %D 2021 %P 55-66 %V 15 %I mathdoc %U http://geodesic.mathdoc.fr/item/DEMR_2021_15_a3/ %G ru %F DEMR_2021_15_a3