Author

C. Frederick

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Preprint Aug 2026

The frameset of the second-order B-Spline along $ab=1/q$

We give a complete characterization of the zero set of the Zak transform of the second-order B-spline $Q_2$. As a consequence, we obtain a new proof of the Lemvig--Nielsen obstructions to the Gabor frame property of $Q_2$, and, along the hyperbola $ab=1/q$, we show these obstructions are sharp: every point they do not...

Alexander Stangl, C. Frederick · 1 citation