Zobrazeno 1 - 2
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pro vyhledávání: '"Wei-Wei Xu"'
Publikováno v:
The Electronic Journal of Linear Algebra. 34:231-239
Let $A\in\mathbb{C}^{m \times n}$ have generalized polar decomposition $A = QH$ with $Q$ subunitary and $H$ positive semidefinite. Absolute and relative perturbation bounds are derived for the subunitary polar factor $Q$ in unitarily invariant norms
Publikováno v:
The Electronic Journal of Linear Algebra. 22
In this paper, we obtain optimal perturbation bounds of the weighted Moore-Penrose inverse under the weighted unitary invariant norm, the weighted Q-norm and the weighted F-norm, and thereby extend some recent results.