167 citations · 800 across the 50 of their papers we have counts for
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Local sampling and approximation of operators with bandlimited Kohn-Nirenberg symbols
Felix Krahmer, Götz Pfander
Recent sampling theorems allow for the recovery of operators with bandlimited Kohn-Nirenberg symbols from their response to a single discretely supported identifier signal. The ava…
Stable and robust sampling strategies for compressive imaging
Felix Krahmer, Rachel Ward
In many signal processing applications, one wishes to acquire images that are sparse in transform domains such as spatial finite differences or wavelets using frequency domain samp…
Suprema of Chaos Processes and the Restricted Isometry Property
Felix Krahmer, Shahar Mendelson, Holger Rauhut
We present a new bound for suprema of a special type of chaos processes indexed by a set of matrices, which is based on a chaining method. As applications we show significantly imp…
Sparsity and spectral properties of dual frames
Felix Krahmer, Gitta Kutyniok, Jakob Lemvig
We study sparsity and spectral properties of dual frames of a given finite frame. We show that any finite frame has a dual with no more than non-vanishing entries, where …