Discretized Gabor Frames of Totally Positive Functions
arXiv:1308.2808
Abstract
In this paper a large class of universal windows for Gabor frames (Weyl-Heisenberg frames) is constructed. These windows have the fundamental property that every overcritical rectangular lattice generates a Gabor frame. Likewise, every undercritical rectangular lattice generates a Riesz sequence.
18 pages, 3 figures