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K-frames, a new generalization of frames, were recently considered by L. Gavruta in connection with atomic systems and some problems arising in sampling theory. Also, fusion frames are an important generalization of frames, applied in a…

泛函分析 · 数学 2017-05-02 Fahimeh Arabyani Neyshaburi , Ali Akbar Arefijamaal

Recently, fusion frames and frames for operators were considered as generalizations of frames in Hilbert spaces. In this paper, we generalize some of the known results in frame theory to fusion frames related to a linear bounded operator K…

泛函分析 · 数学 2021-12-10 Yuxiang Xu , Dongwei Li , Jinsong Leng

After introducing g-frames and fusion frames by Sun and Casazza, combining these frames together is an interesting topic for research. In this paper, we introduce the generalized fusion frames or g-fusion frames for Hilbert spaces and give…

泛函分析 · 数学 2018-06-12 Vahid Sadri , Gholamreza Rahimlou , Reza Ahmadi , Ramazan Zarghami

K-frames were introduced by L. Gavruta to study atomic systems on Hilbert spaces. Recently some generalizations of this concept are introduced and some of its difference with ordinary frames are studied. In this paper *-K-frames are…

算子代数 · 数学 2016-06-28 Mohammad Janfada , Bahram Dastourian

We present the notion of continuous controlled K-g-fusion frame in Hilbert space which is the generalization of discrete controlled K-g-fusion frame. We discuss some characterizations of continuous controlled K-g-fusion frame. Relationship…

泛函分析 · 数学 2024-10-16 Prasenjit Ghosh , T. K. Samanta

We introduce the notion of a generalized fusion frame in quaternionic Hilbert space. A characterization of generalized fusion frame in quaternionic Hilbert space with the help of frame operator is being discussed. Finally, we construct…

泛函分析 · 数学 2024-04-08 Prasenjit Ghosh

Controlled frames and g-frames were considered recently as generalizations of frames in Hilbert spaces. In this paper we generalize some of the known results in frame theory to controlled g-frames. We obtain some new properties of…

泛函分析 · 数学 2019-12-19 Dongwei Li , Jinsong Leng

k-frames were recently introduced by Gavruta in Hilbert spaces to study atomic systems with respect to a bounded linear operator. A continuous frame is a family of vectors in Hilbert space which allows reproductions of arbitrary elements by…

泛函分析 · 数学 2019-01-15 Gholamreza Rahimlou , Reza Ahmadi , Mohammad Ali Jafarizadeh , Susan Nami

Operator-valued frames (or g-frames) are generalizations of frames and fusion frames and have been used in packets encoding, quantum computing, theory of coherent states and more. In this paper, we give a new formula for operator-valued…

泛函分析 · 数学 2015-04-27 L. Gavruta , P. Gavruta

$K$-fusion frames are a generalization of fusion frames in frame theory. In this paper, we extend the concept of controlled fusion frames to controlled $K$-fusion frames, and we develop some results on the controlled $K$-fusion frames for…

泛函分析 · 数学 2020-07-13 N. Assila , S. Kabbaj , B. Moalige

We introduce the notion of a g-atomic subspace for a bounded linear operator and construct several useful resolutions of the identity operator on a Hilbert space using the theory of g-fusion frames. Also we shall describe the concept of…

泛函分析 · 数学 2024-03-12 Prasenjit Ghosh , T. K. Samanta

In this paper we intend to introduce the concept of c-K-g-frames, which are the generalization of K-g-frames. In addition, we prove some new results on c-K-g-frames on Hilbert spaces. Moreover, we define the related oprators of c-K-g…

泛函分析 · 数学 2019-05-15 E. Alizadeh , M. H. Faroughi , M. Rahmani

Generalized fusion frame and some of their properties in tensor product of Hilbert spaces are described. Also, the canonical dual g-fusion frame in tensor product of Hilbert spaces is considered. Finally, the frame operator for a pair of…

泛函分析 · 数学 2023-03-28 Prasenjit Ghosh , Tapas Kumar Samanta

This paper introduces the concept of atomic subspaces with respect to a bounded linear operator. Atomic subspaces generalize fusion frames and this generalization leads to the notion of $K$-fusion frames. Characterizations of $K$-fusion…

泛函分析 · 数学 2020-05-22 Animesh Bhandari , Saikat Mukherjee

In this paper, we introduce the concept of $K$-fusion frames and propose the duality for such frames. The relation between the local frames of $K$-fusion frames with their dual is studied. The elements from the range of a bounded linear…

泛函分析 · 数学 2018-08-07 Mitra Shamsabadi , Ali Akbar Arefijamaal , Ghadir Sadeghi

Frame theory has been rapidly generalized and various generalizations have been developed. In this paper, we present a brief survey of the frames in Hilbert $C^{\ast}$-modules, including frames, $\ast$-frames, g-frames, $\ast$-g-frames,…

泛函分析 · 数学 2022-12-20 M'hamed Ghiati , Mohammed Mouniane , Mohamed Rossafi

Controlled g-atomic subspace for a bounded linear operator is being presented and a characterization has been given. We give an example of controlled K-g-fusion frame. We construct a new controlled K-g-fusion frame for the Hilbert space H ?…

泛函分析 · 数学 2023-03-29 Prasenjit Ghosh , T. K. Samanta

Controlled frames in Hilbert spaces have been introduced by Balazs, Antoine and Grybos to improve the numerical output of in relation to algorithms for inverting the frame operator. In this paper we have introduced and displayed some new…

泛函分析 · 数学 2018-05-02 Habib shakoory , Reza Ahmadi , Naghi Behzadi , Susan Nami

K-fusion frames are generalizations of fusion frames in frame theory. This article characterizes various kinds of property of K-fusion frames. Several perturbation results on K-fusion frames are formulated and analyzed.

泛函分析 · 数学 2018-03-28 Animesh Bhandari , Saikat Mukherjee

Improving and extending the concept of dual for frames, fusion frames and continuous frames, the notion of dual for continuous fusion frames in Hilbert spaces will be studied. It will be shown that generally the dual of c-fusion frames may…

泛函分析 · 数学 2016-08-09 Asghar Rahimi , Zahra Darvishi , Bayaz Daraby
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