TY - JOUR AU - V. È. Gheit TI - The generalized Lorentz theorem on Fourier series with monotone coefficients and its converse JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1998 SP - 15 EP - 17 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1998_4_a1/ LA - ru ID - IVM_1998_4_a1 ER -