On the estimation of eigenvalues for bisymmetric matrices (Q2739022)
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scientific article; zbMATH DE number 1643379
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the estimation of eigenvalues for bisymmetric matrices |
scientific article; zbMATH DE number 1643379 |
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9 September 2001
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bisymmetric matrix
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eigenvalue estimates
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0.90700275
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0.9048995
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0.8914101
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0.89035726
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On the estimation of eigenvalues for bisymmetric matrices (English)
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An \(n\times n\) real matrix \(A= [a_{ij}]\) is bisymmetric if its entries satisfy \(a_{ij}= a_{ji}= a_{n-j+1,n-i+1}\) for all \(i\) and \(j\). This paper gives some estimate ranges for the eigenvalues of \(A\) in terms of the entries \(a_{ij}\). The estimates, which make use of the special structure of such matrices and are based on some previous results, are easy to implement.
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