A characterization of Gabor Riesz bases with separable time-frequency shifts

Christina Frederick, Azita Mayeli

A Gabor system generated by a window function $g\in L^2({\mathbb{R}}^d)$ and a separable set $\Lambda \times \Gamma \subset {\mathbb{R}}^{2d}$ is the collection of time-frequency shifts of $g$ give…