Perturbation estimates for the nonlinear matrix equation \(X-A^*X^qA=Q\) (\(0<q<1\)). (Q2430477)

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Perturbation estimates for the nonlinear matrix equation \(X-A^*X^qA=Q\) (\(0<q<1\)).
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    Perturbation estimates for the nonlinear matrix equation \(X-A^*X^qA=Q\) (\(0<q<1\)). (English)
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    6 April 2011
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    The nonlinear matrix equation \(X - A^{*} X^{q} A=Q\) with \(0<q<1\) is investigated. Two perturbation estimates for the unique positive definite solution of the equation are derived. The theoretical results are illustrated by numerical examples.
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    perturbation estimates
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    nonlinear matrix equation
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    positive definite solution
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    numerical examples
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