TY - JOUR AU - Gleason, Jim TI - Perturbation of a Fredholm complex by inessential operators. JO - Georgian Mathematical Journal PY - 2001 SP - 61 EP - 67 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/GMJ_2001__8_1_49161/ LA - en ID - GMJ_2001__8_1_49161 ER -