## On the periodized square of $$L^2$$ cardinal splines.(English)Zbl 1262.41007

Summary: We establish properties of and propose a conjecture concerning $$\sum_m (S(x+m))^2$$, where $$S$$ is a piecewise polynomial cardinal spline in $$L^2(\mathbb R)$$.

### MSC:

 41A15 Spline approximation 62G07 Density estimation
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### References:

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