A test for strict sign-regularity (Q1319984)
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scientific article; zbMATH DE number 553957
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A test for strict sign-regularity |
scientific article; zbMATH DE number 553957 |
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A test for strict sign-regularity (English)
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19 April 1994
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A characterization of strict sign-regular matrices is obtained in an algorithmic form. This allows the construction of a test to check if a matrix \(A\) is strictly sign-regular. The test is based on the Neville elimination of several submatrices of \(A\) and requires less computational work than previous characterizations.
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algorithm
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strict sign-regular matrices
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Neville elimination
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