TY - JOUR AU - M. Berkani TI - Restriction of an operator to the range of its powers JO - Studia Mathematica PY - 2000 SP - 163 EP - 175 VL - 140 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-140-2-163-175/ DO - 10.4064/sm-140-2-163-175 LA - en ID - 10_4064_sm_140_2_163_175 ER -