TY - JOUR AU - Mahmoud Kutkut TI - On The Set Of Operators Having A Given Simply Connected Spectral Set. JO - Revista colombiana de matematicas PY - 1981 SP - 147 EP - 156 VL - 15 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RCM_1981__15_181711/ ID - RCM_1981__15_181711 ER -