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math.FA2026
The zero set of the Zak transform of B-splines with applications to Gabor frames
Marzieh Hasannasab, Jakob Lemvig
We study the zero sets of the Zak transform of B-splines for . Specifically, we provide a full characterization of the zero set for the hat spline for all posit…
math.CA2026
Directional polynomial frames on spheres
Marzieh Hasannasab, Larissa Kaldewey, Frederic Schoppert
We introduce a general framework for the construction of polynomial frames in , , where the frame functions are obtained as rotated versions of an…