سعید کریمی جعفر بیگلو

In the present paper an iterative method is proposed to approximate Moore-Ponrose and Drazin inverses. This method is based on Global Least Square algorithm (GL-LSQR). To do so, we define some linear matrix equations systems. By using the approximate solutions of these systems, obtained by GL-LSQR algorithm, Moore-Ponrose and Drazin inverses are approximated. Finally, some numerical examples are given to show the efficiency of the new method.