Author

Andrei Caragea

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Preprint Sep 2026

Schwartz-Class Gabor Windows and the Balian-Low Classification

A lattice Gabor frame consists of a window function and its time-frequency shifts along a lattice. We classify the lattices that admit Schwartz-class and, equivalently, Feichtinger frame windows. Except for symplectically irrational lattices of critical covolume 1,, we determine the lattice-dependent achievable window...

Andrei Caragea, G. Pfander · 0 citations