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Circulant matrices are diagonalized by the DFT basis
taught
Taught in
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Circulant matrices and why the DFT basis diagonalizes them
Fourier Analysis
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The discrete case, revisited: circulant matrices and the DFT basis
Fourier Analysis
Requires
- dft-definition-and-matrix-form required
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symmetric-matrices-and-orthogonal-diagonalization
required
Cross-domain (linear-algebra): a circulant matrix's diagonalization by the fixed DFT basis is a special case of the symmetric-matrix spectral theorem.
Required by
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