A note on stable perturbations of Moore-Penrose inverses

نویسندگان

Zhao Li

Qingxiang Xu

Yimin Wei

چکیده

SUMMARY Perturbation bounds for Moore-Penrose inverses of rectangular matrices play a significant role in the perturbation analysis for linear least squares problems. In this note, we derive a sharp upper bound for Moore-Penrose inverses, which is better than a well known existing one [12].

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