TY - JOUR AU - Heinrich Raubenheimer AU - Tshikhudo Lukoto TI - Characterisations of the radical in a Banach algebra JO - Filomat PY - 2023 SP - 1449 VL - 37 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2305449R/ DO - 10.2298/FIL2305449R LA - en ID - 10_2298_FIL2305449R ER -