Tridiagonal factorizations of Fourier matrices and applications to parallel computations of discrete Fourier transforms (Q1103363)
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scientific article; zbMATH DE number 4052966
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Tridiagonal factorizations of Fourier matrices and applications to parallel computations of discrete Fourier transforms |
scientific article; zbMATH DE number 4052966 |
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Tridiagonal factorizations of Fourier matrices and applications to parallel computations of discrete Fourier transforms (English)
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1988
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A method, called minimal-variable oblique elimination is developed for implementing parallel computation of discrete Fourier transforms on linear, or mesh-connected, arrays of processors. Before explicit describing this factorization, the author discusses necessary and sufficient conditions for its practice and proves then the applicability of this technique to compute discrete Fourier transforms of all orders. Complexity in the computation is also estimated.
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