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A Note on Fast Cyclic Convolution

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1 Author(s)

This note presents a new algorithm for computing the cyclic convolution of two vectors over a commutative ring. The algorithm requires n(n1+1)...(nk+1)/2kmultiplications for the convolution of two n-vectors, where n=n1...nkis a factorization of n into factors which are pairwise relatively prime.

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Computers, IEEE Transactions on  (Volume:C-20 ,  Issue: 6 )