[<<][math][>>][..]Sun Aug 8 07:30:28 CEST 2010

What is the idea behind a quadratic residue diffusor (QRD)? What is the link with Schroeder and Newman phases? ( Is there any link with the "maximal irrationality" of the golden ratio. Max. irr. here means partial fraction expansion is all ones which means that rational approximation converges as slow as possible. ) In [2] it is mentioned that surprisingly, the DFT of the exponentiated sequence (amplitude 1 and n^2 mod p used as the _phase_) has a constant magnitude. Why is this? [1] http://www.dpi.physik.uni-goettingen.de/~mrs/Vortraege/Remembering-the-Good-Days-at-Bell-Laboratories-2004/index.html [2] https://ccrma.stanford.edu/~kglee/pubs/2dmesh_QRD_rev1/node2.html

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