Perturbation analysis for the positive definite solution of the nonlinear matrix equation \(X-\sum_{i=1}^{m}A^{*}_{i}X^{\delta_{i}}A_{i}=Q\)
Using some properties of the spectral norm and Thomson metric, the authors present two estimates for the positive definite solution of some nonlinear matrix equation, which arises in an optimal interpolation problem.
scientific article; zbMATH DE number 6044961