TY - JOUR AU - Alan McIntosh AU - Alan Pryde AU - Werner Ricker TI - Comparison of joint spectra for certain classes of commuting operators JO - Studia Mathematica PY - 1988 SP - 23 EP - 36 VL - 88 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-88-1-23-36/ DO - 10.4064/sm-88-1-23-36 LA - en ID - 10_4064_sm_88_1_23_36 ER -