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- W4324373906 abstract "This paper investigates the refined perturbation formulae and perturbation bounds for the group inverse and its oblique projection by the Schur decomposition. In addition, relative perturbation formulae and bounds of some rational expressions that involve group inverses of initial and perturbed matrix are considered. The obtained perturbation limit is sharper than the existing ones derived using the Jordan canonical form." @default.
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- W4324373906 date "2023-07-01" @default.
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- W4324373906 title "Perturbation Bounds for the Group Inverse and its Oblique Projection" @default.
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- W4324373906 doi "https://doi.org/10.1016/j.amc.2023.127963" @default.
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