48:30
published on April 15, 2026
Compact composition operators on spaces of Dirichlet series
By Karl-Mikael Perfekt
Appears in collections : Coherent states and their applications: a contemporary panorama / Etats cohérents et leurs applications : un panorama contemporain, Distinguished women in mathematics, Exposés de recherche
Retrieving an arbitrary signal from the magnitudes of its inner products with the elements of a frame is not possible in infinite dimensions. Under certain conditions, signals can be retrieved satisfactorily however.