Approximate duality of frames and g-frames in Hilbert C*-modules

Approximate duality of frames and g-frames in Hilbert C*-modules

In this paper we get some results for approximate duals of frames and g-frames in Hilbert C*-modules. Especially we consider perturbations of approximate duals in Hilbert C*-modules and generalize some of the results obtained for approximate duals of frames and g-frames in Hilbert spaces to Hilbert C*-modules.