TY - JOUR AU - A. I. Vahabov TI - On~equiconvergence of expansions in trigonometric Fourier series and in principal functions of ordinary differential operators JO - Izvestiya. Mathematics PY - 1985 SP - 567 EP - 582 VL - 24 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1985_24_3_a6/ LA - en ID - IM2_1985_24_3_a6 ER -