2 papers
math.CA2026
The frameset of the second-order B-Spline along
Alexander Stangl, Christina Frederick
We give a complete characterization of the zero set of the Zak transform of the second-order B-spline . As a consequence, we obtain a new proof of the Lemvig--Nielsen obstruct…
math.GM2026
On the structure of the Gram matrix for Gabor systems generated by B-splines
Martin Buck, Christina Frederick, Kasso Okoudjou +1
We consider the Gabor system generated by a continuous, compactly supported function over the time-frequency lattice generated by…