TY - JOUR AU - A. A. Nurmagomedov TI - Approximation properties of discrete Fourier sums in polynomials orthogonal on non-uniform grids JO - Vladikavkazskij matematičeskij žurnal PY - 2020 SP - 34 EP - 47 VL - 22 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMJ_2020_22_2_a3/ LA - ru ID - VMJ_2020_22_2_a3 ER -