Classification of weighing matrices of order 13 and weight 9 (Q1802127)
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scientific article; zbMATH DE number 219079
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Classification of weighing matrices of order 13 and weight 9 |
scientific article; zbMATH DE number 219079 |
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Classification of weighing matrices of order 13 and weight 9 (English)
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8 August 1993
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A weighing matrix \(W\) of order \(n\) and weight \(k\) is a \(n\times n\) square matrix with elements 1, \(-1\) and 0 such that \(WW'=kI_ n\), when \(I_ n\) is the identity matrix and \(W'\) is the transpose of \(W\). By a computer search 71 weighing matrices of order 13 and weight 9 were constructed and were classified into eight inequivalent classes.
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classification
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Hadamard product
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coding
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weighing designs
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weighing matrix
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