TY - JOUR AU - N. L. Kudryavtsev TI - On connection of $m$-term and best approximations of some classes of sequences in the spaces $l_p$ JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2020 SP - 28 EP - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2020_1_a3/ LA - ru ID - VMUMM_2020_1_a3 ER -