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arXiv · 1702.02689

Supercharacters and the discrete Fourier, cosine, and sine transforms

Stephan Ramon Garcia·Samuel Yih
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Abstract

Using supercharacter theory, we identify the matrices that are diagonalized by the discrete cosine and discrete sine transforms, respectively. Our method affords a combinatorial interpretation for the matrix entries.

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Stephan Ramon Garcia, Samuel Yih. 2017-02-09. Supercharacters and the discrete Fourier, cosine, and sine transforms. https://arxiv.org/abs/1702.02689

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