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math.NA2015
Implementation of discretized Gabor frames and their duals
Tobias Kloos, Joachim Stöckler, Karlheinz Gröchenig
The usefulness of Gabor frames depends on the easy computability of a suitable dual window. This question is addressed under several aspects: several versions of Schulz's iterative…
math.NA2014
Zeros of the Zak transform of totally positive functions
Tobias Kloos
We study the Zak transform of totally positive (TP) functions. We use the convergence of the Zak transform of TP functions of finite type to prove that the Zak transforms of all TP…