TY - JOUR AU - R. M. Trigub TI - A Lower Bound for the $L_1$-norm of Fourier Series of Polynomial Type JO - Matematičeskie zametki PY - 2003 SP - 951 EP - 953 VL - 73 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2003_73_6_a16/ LA - ru ID - MZM_2003_73_6_a16 ER -