"On Gabor frames and compactly supported dual windows"Stoeva, DianaIn this talk we consider Gabor frames with compactly supported generating functions and present a characterization of all compactly supported dual windows (if such ones exist). We also consider an iterative procedure for approximation of the canonical dual window, which gives a compactly supported dual window on every iteration step. In certain cases, the dual windows in the iteration steps belong to the Schwartz space or certain modulation spaces. |
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