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20062025
most citedA geometric construction of tight Gabor frames with multivariate compactly supported smooth windows

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math.FA2015

A time-frequency density criterion for operator identification

Niklas Grip, Götz E. Pfander, Peter Rashkov

We establish a necessary density criterion for the identifiability of time-frequency structured classes of Hilbert-Schmidt operators. The density condition is based on the density…