TY - JOUR AU - S. Jafarov TI - Approximation by N\"orlund type means in the grand Lebesgue spaces with variable exponent JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2024 SP - 19 EP - 32 VL - 34 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VUU_2024_34_1_a1/ LA - en ID - VUU_2024_34_1_a1 ER -