Invertibility conditions for block matrices and estimates for norms of inverse matrices (Q1880842)
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scientific article; zbMATH DE number 2104672
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Invertibility conditions for block matrices and estimates for norms of inverse matrices |
scientific article; zbMATH DE number 2104672 |
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Invertibility conditions for block matrices and estimates for norms of inverse matrices (English)
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1 October 2004
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The author derives a non-sigularity criterion for block matrices. Invertibility conditions which improve well-known results for matrices that are ``close'' to block triangular matrices are proposed. Finally an estimate for the norm of the inverse matrices is derived.
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block matrices
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invertibility conditions
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block triangular matrices
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norm
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inverse matrices
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