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Fig. A.1
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Fourier transform 
(blue) and its translated copies (red). Here, 2v < kmax ≤ 3v and therefore n0 = 3. The translated copies 
overlap f for n ∈ {−2,−1,1,2} (dashed curves). On the interval I = [−3v, 3v], there is no contribution of 
for any |n| ≥ n0.
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