Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules

In this paper, we study approximate duals of $g$-frames and fusion frames in Hilbert $C^ast-$modules. We get some relations between approximate duals of $g$-frames and biorthogonal Bessel sequences, and using these relations, some results for approximate duals of modular Riesz bases and fusion frame...

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Main Author: Morteza Mirzaee Azandaryani
Format: Article
Language:English
Published: University of Maragheh 2019-07-01
Series:Sahand Communications in Mathematical Analysis
Subjects:
Online Access:http://scma.maragheh.ac.ir/article_35726_cc21d1f5aa898076fe219206175ae0ca.pdf
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author Morteza Mirzaee Azandaryani
author_facet Morteza Mirzaee Azandaryani
author_sort Morteza Mirzaee Azandaryani
collection DOAJ
description In this paper, we study approximate duals of $g$-frames and fusion frames in Hilbert $C^ast-$modules. We get some relations between approximate duals of $g$-frames and biorthogonal Bessel sequences, and using these relations, some results for approximate duals of modular Riesz bases and fusion frames are obtained. Moreover, we generalize the concept of $Q-$approximate duality of $g$-frames and fusion frames to Hilbert $C^ast-$modules, where $Q$ is an adjointable operator, and obtain some properties of this kind of approximate duals.
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spelling doaj.art-6aa75f1ee894426381182551b83989482022-12-22T03:55:00ZengUniversity of MaraghehSahand Communications in Mathematical Analysis2322-58072423-39002019-07-0115113514610.22130/scma.2018.81624.39635726Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modulesMorteza Mirzaee Azandaryani0Department of Mathematics, University of Qom, Qom, Iran.In this paper, we study approximate duals of $g$-frames and fusion frames in Hilbert $C^ast-$modules. We get some relations between approximate duals of $g$-frames and biorthogonal Bessel sequences, and using these relations, some results for approximate duals of modular Riesz bases and fusion frames are obtained. Moreover, we generalize the concept of $Q-$approximate duality of $g$-frames and fusion frames to Hilbert $C^ast-$modules, where $Q$ is an adjointable operator, and obtain some properties of this kind of approximate duals.http://scma.maragheh.ac.ir/article_35726_cc21d1f5aa898076fe219206175ae0ca.pdfFrame$g$-frameFusion frameBiorthogonal sequenceApproximate duality
spellingShingle Morteza Mirzaee Azandaryani
Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules
Sahand Communications in Mathematical Analysis
Frame
$g$-frame
Fusion frame
Biorthogonal sequence
Approximate duality
title Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules
title_full Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules
title_fullStr Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules
title_full_unstemmed Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules
title_short Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules
title_sort approximate duals of g frames and fusion frames in hilbert c ast modules
topic Frame
$g$-frame
Fusion frame
Biorthogonal sequence
Approximate duality
url http://scma.maragheh.ac.ir/article_35726_cc21d1f5aa898076fe219206175ae0ca.pdf
work_keys_str_mv AT mortezamirzaeeazandaryani approximatedualsofgframesandfusionframesinhilbertcastmodules