TY - JOUR AU - Tang, Shen-Chi TI - A theorem on Riesz summability $(R,\omega , 2)$ on Banach space JO - Compositio Mathematica PY - 1965-1966 SP - 167 EP - 171 VL - 17 PB - Kraus Reprint UR - http://www.numdam.org/item/CM_1965-1966__17__167_0/ LA - en ID - CM_1965-1966__17__167_0 ER -