TY - JOUR AU - Macdonald, Gordon W. TI - Distance From Projections to Nilpotents JO - Canadian journal of mathematics PY - 1995 SP - 841 EP - 851 VL - 47 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1995-043-3/ DO - 10.4153/CJM-1995-043-3 ID - 10_4153_CJM_1995_043_3 ER -