Characterization of g-Riesz basis and their dual in Hilbert A-module

摘要

We investigate dual of g-frames and g-Riesz bases in Hilbert Amodule.The purpose of this paper is to investigate some basic propertiesabout g-Riesz basis and their duals. We obtain a necessary andsufficient condition for a dual of a g-Riesz basis to be again a g-Rieszbasis.