Minimal square spectral factors via triples (Q2719195)
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scientific article; zbMATH DE number 1608859
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Minimal square spectral factors via triples |
scientific article; zbMATH DE number 1608859 |
Statements
21 June 2001
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spectral factorization
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minimal factorization
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null-pole triples
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square minimal spectral factors
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rational matrix function taking positive semidefinite values
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invariant subspaces
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0.90998876
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0.8436135
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0.8431292
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Minimal square spectral factors via triples (English)
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The authors consider the problem of parametrizing the set of square minimal spectral factors of a rational matrix function taking positive semidefinite values (poles or zeros are admissible) on the imaginary axis in terms of invariant subspaces and of the minimal unitary left divisors of a certain unitary function. They use an approach which involves null-pole triples.
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