TY - JOUR AU - A. Ya. Helemskii TI - A locally compact group algebra having trivial two-dimensional Banach cohomology groups is compact JO - Doklady Akademii Nauk PY - 1972 SP - 1004 EP - 1007 VL - 203 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1972_203_5_a7/ LA - ru ID - DAN_1972_203_5_a7 ER -