On Riesz duals for Gabor systems on LCA groups
摘要
In the context of separable uniform time-frequency lattices in locally compact abelian groups, we analyse the circumstances in which, for a given Gabor frame, the adjoint Gabor system is an R-dual of the Gabor frame. In this regard, we also prove a necessary condition for a given Gabor Bessel sequence to be complete.