In this paper, necessary and sufcient condition for the existence of the limitationof the form 位li鈫'm0B(位I+AY)1and 位li鈫'm0(A+位I)1B are given on Hilbert spaces. Fur-thermore, we obtain some properties involving the two type of the limitations.We usethe higher-order convergent iterative method for computing the generalized inverse A(2)T,Sover Banach spaces and the generalized Drazin inverse adin Banach algebra.Moreover,we estimate the error bounds of the iterative methods for approximating A(2)T,Sor ad... |