Fourier matrices and Fourier tensors
Changqing XU
Front. Math. China ›› 2021, Vol. 16 ›› Issue (4) : 1099 -1115.
Fourier matrices and Fourier tensors
The Fourier matrix is fundamental in discrete Fourier transforms and fast Fourier transforms. We generalize the Fourier matrix, extend the concept of Fourier matrix to higher order Fourier tensor, present the spectrum of the Fourier tensors, and use the Fourier tensor to simplify the high order Fourier analysis.
Fourier matrix / tensor / CP decomposition / Fourier analysis
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Higher Education Press
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