REFLEXIVE R−DUAL SEQUENCES AND FRAMES

Dual sequences and dual frames play a fundamental role for analyzing frame theory and Gabor systems. In this article we present reflexive R−dual sequences and reflexive frames with respect to two orthonormal basis in a separable Hilbert space H. Also we give some equivalent conditions for reflexivity of R−dual frames

کلیدواژه ها:

Frame ، Riesz basis ، R−dual sequence