TY - JOUR AU - Tomczak-Jaegermann, N. TI - Dimensional gradations and cogradations of operator ideals. The weak distance between Banach-spaces JO - Séminaire d'Analyse fonctionnelle (dit "Maurey-Schwartz") N1 - talk:9 PY - 1980-1981 SP - 1 EP - 30 PB - Ecole Polytechnique, Centre de Mathématiques UR - http://www.numdam.org/item/SAF_1980-1981____A9_0/ LA - en ID - SAF_1980-1981____A9_0 ER -