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相关论文: The duals of $\ast$-operator frames for $End_{\mat…

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In this paper, a new notion of frames is introduced: $\ast$-operator frame as generalization of $\ast$-frames in Hilbert $C^{\ast}$-modules introduced by A. Alijani and M. A. Dehghan \cite{Ali} and we establish some results.

算子代数 · 数学 2018-11-13 Mohamed Rossafi , Samir Kabbaj

Frames play significant role in various areas of science and engineering. In this paper, we introduce the concepts of frames for $End_{\mathcal{A}}^{\ast}(\mathcal{H, K})$ and their generalizations. Moreover, we obtain some new results for…

算子代数 · 数学 2019-07-05 Mohamed Rossafi , Samir Kabbaj

In this Work, We introduce the concept of $\ast$-operator frame, which is a generalization of $\ast$-frames in Hilbert pro-$C^{\ast}$-modules, and we establish some results, we also study the tensor product of $\ast$-operator frame for…

泛函分析 · 数学 2021-11-19 Roumaissae Eljazzar , Mohamed Rossafi

The concept of operator frame can be considered as a generalization of frame. Firstly, we introduce the notion of operator frame for the set of all adjointable operators $Hom_{\mathcal{A}}^{\ast}(\mathcal{X})$ on a Hilbert…

泛函分析 · 数学 2022-12-15 Roumaissae Eljazzar , Mohamed Rossafi , Choonkil Park

Frames play an important role in various practical problems related to signal and image processing. In this paper, we define computable frames in computable Hilbert spaces and obtain computable versions of some of their characterizations.…

泛函分析 · 数学 2018-01-12 Poonam Mantry , S. K. Kaushik

In this paper, we will introduce the concept of biframes for Hilbert $ C^{\ast}- $modules produced by a pair of sequences, and we present various examples of biframes. Then, we examine the characteristics of biframes from the viewpoint of…

泛函分析 · 数学 2025-01-28 Mohamed Rossafi , Abdelilah Karara , Roumaissae El jazzar

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

Operator-valued frames are natural generalization of frames that have been used in quantum computing, packets encoding, etc. In this paper, we focus on developing the theory about operator-valued frames for finite Hilbert spaces. Some…

泛函分析 · 数学 2010-09-28 Bin Meng

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

Frame Theory has a great revolution for recent years. This theory has been extended from Hilbert spaces to Hilbert $C^{\ast}$-modules. In this paper, we introduce the concept of Controlled $\ast$-$K$-operator frame for the space…

泛函分析 · 数学 2023-02-16 Hatim Labrigui , Mohamed Rossafi , Abdeslam Touri , Nadia Assila

We show that any two frames in a separable Hilbert space that are dual to each other have the same excess. Some new relations for the analysis resp. synthesis operators of dual frames are also derived. We then prove that pseudo-dual frames…

泛函分析 · 数学 2016-04-21 Damir Bakić , Tomislav Berić

In this work, we introduce a new concept of integral $K$-operator frame for the set of all adjointable operators from Hilbert $C^{\ast}$-modules $\mathcal{H}$ to it self noted $End_{\mathcal{A}}^{\ast}(\mathcal{H}) $. We give some propertis…

泛函分析 · 数学 2020-12-02 Hatim Labrigui , Samir Kabbaj

Frame theory is recently an active research area in mathematics, computer science, and engineering with many exciting applications in a variety of different fields. In this paper, we firstly give a characterization of operator frame for…

泛函分析 · 数学 2019-05-06 Mohamed Rossafi , Abdellatif Akhlidj

Frame Theory has a great revolution for recent years. This theory has been extended from Hilbert spaces to Hilbert $C^{\ast}$-modules. In this paper, we introduce the concept of Controlled K-operator frame for the space…

泛函分析 · 数学 2020-08-14 Abdeslam Touri , Samir Kabbaj

In the present paper the notion of continuous frames is introduced and some results of these frames are proved. Next, we give the concept of duals of continuous frames in Hilbert C*-modules and investigate some properties of them.

泛函分析 · 数学 2023-01-24 Hadi Ghasemi , Tayebe Lal Shateri

This paper concerns dual frames multipliers, i.e. operators in Hilbert spaces consisting of analysis, multiplication and synthesis processes, where the analysis and the synthesis are made by two dual frames, respectively. The goal of the…

泛函分析 · 数学 2023-10-31 Rosario Corso

Frames in a separable quaternionic Hilbert space were introduced and studied in [17] to have more applications. In this paper, we extend the study of frames in quaternionic Hilbert spaces and introduce different types of duals of a frame in…

泛函分析 · 数学 2018-03-16 S. K. Sharma , Ghanshyam Singh , Soniya Sahu

In this paper, we investigate some characterizations of dual continuous frames and give some results about them. Also, we refer to the method of constructing a family of duals through a fixed dual and show there exists a one-to-one…

泛函分析 · 数学 2023-02-28 H. Ghasemi , T. L. Shateri , A. Arefijamaal

In the present paper, we investigate some properties of duals of continuous frames in Hilbert C*-modules. In particular, we give requirements so that by removing some elements of a continuous frame, it does not remain a continuous frame and…

泛函分析 · 数学 2023-04-25 Hadi Ghasemi , Tayebe Lal Shateri

The definition of dual fusion frame presents technical problems related to the domain of the synthesis operator. The notion commonly used is the analogous to the canonical dual frame. Here a new concept of dual is studied in…

经典分析与常微分方程 · 数学 2015-09-28 Sigrid Heineken , Patricia Morillas , Ana Benavente , María Zakowicz
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