THE PERTURBATION THEORY FOR THE DRAZIN INVERSE AND ITS APPLICATIONS

• 作 者: 王国荣 魏益民
• 机 构: DepartmentofMathematics,ShanghaiNormalUniversi200234,PRC,InstituteofMathematics,FudanUniversity,Shan
• 出 处: 高等学校计算数学学报：英文版
• 发表日期: 1996年1期
• 关键词: DRAZIN INVERSE PERTURBATION BOUND index SINGULAR equations. Drazin inverse pertu
• 基金项目: This project is supported by National Natural Science Foundation of China.

Let A and E be an n×n matrices and B=A+E. Denote the Drazin inverse of A by AD In this paper, we give an upper bound for the relative error ||BD-AD||/||AD|| under certain circumstances. The error bound of the solution for singular equations Ax=b[Ind