Concentration operators on RKHS have controlled plunge regions in their spectra, with discretization-uniform estimates showing that fine-grid Gabor multipliers preserve the localization properties of the continuous STFT.
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Spectral deviation of concentration operators on reproducing kernel Hilbert spaces
Concentration operators on RKHS have controlled plunge regions in their spectra, with discretization-uniform estimates showing that fine-grid Gabor multipliers preserve the localization properties of the continuous STFT.