If in a paper I read " ... using fast Fourier transform zero-padded to avoid aliasing." how do I do this with Fourier? (I mean: in ListConvolve I can have a third argument 0, but then I don't quite see how to "fix" that convolution theorem relation in M (like, from the Help: {a, b} = RandomReal[1, {2, 31}];
ListConvolve[a, b, {1, 1}] ==
InverseFourier[Fourier[a] Fourier[b]] Sqrt[31] ) )