Superoptimal analytic approximations of matrix functions (Q1328275)
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scientific article; zbMATH DE number 599767
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Superoptimal analytic approximations of matrix functions |
scientific article; zbMATH DE number 599767 |
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Superoptimal analytic approximations of matrix functions (English)
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15 March 1995
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The paper deals with the problem of approximation of a bounded matrix function \(G\) on the unit circle by functions \(Q\) bounded and analytic in the unit disk. In the case of continuous \(G\) it is stated that there exists a unique \(Q\) such that \(G- Q\) minimizes the singular values. The structure of the error \(G-Q\) and smoothness properties of \(Q\) are studied.
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approximation of a bounded matrix function
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0.9445167
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0.92111605
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0.9129322
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0.9107581
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0.90266025
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0.8994324
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0.89182985
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0.8846405
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0.88140875
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