Fourier series of a function(B spline) are given by: $$s(x)=\sum_{j=-\infty}^{\infty}sinc[\pi\frac{j}{K}]^{p}exp[2\pi ijx]$$
But B-spline has only finite support. How to see it using its Fourier series representation?
fourier series of b-spline
vilvarin
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