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Perturbation analysis for the matrix equations \(X\pm A^*X^{-1}A=I\). (English) Zbl 1181.15017

The authors give some new perturbation bounds for Hermitian positive definite solutions to the matrix equation \(X\pm A^*X^{-1}A=I\). Two numerical examples are also given to illustrate the results in this paper.

MSC:

15A24 Matrix equations and identities
15B48 Positive matrices and their generalizations; cones of matrices
15B57 Hermitian, skew-Hermitian, and related matrices
15A60 Norms of matrices, numerical range, applications of functional analysis to matrix theory
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