Wang-Zhu-Cantor additive FFT (Discrete Fourier Transform Discrete Fourier Transform)

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Time Complexity

$O(n(\log n)$^{1.{58}5})

Space Complexity

$O(n)$? words

(Computes O(n) remainders per stage; storage space can be reused across stages)

Description

Approximate?

Exact

Randomized?

No, deterministic

Model of Computation

Word/Real RAM

Year

1988

Reference

https://ieeexplore.ieee.org/document/1926/