Weyl-type relative perturbation bounds for eigensystems of Hermitian matrices

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Weyl-type relative perturbation bounds for eigensystems of Hermitian matrices

We present a Weyl-type relative bound for eigenvalues of Hermitian perturbations A + E of (not necessarily definite) Hermitian matrices A. This bound, given in function of the quantity η = ‖A−1/2EA−1/2‖2, that was already known in the definite case, is shown to be valid as well in the indefinite case. We also extend to the indefinite case relative eigenvector bounds which depend on the same qua...

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ژورنال

عنوان ژورنال: Linear Algebra and its Applications

سال: 2000

ISSN: 0024-3795

DOI: 10.1016/s0024-3795(00)00018-5