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In this paper we deal with the connection of frames with the class of Hilbert Schmidt operators. First we give an easy criteria for operators being in this class using frames. It is the equivalent to the criteria using orthonormal bases.…

泛函分析 · 数学 2008-04-09 Peter Balazs

In this paper we will look at the connection of frames and finite dimensionality. A main focus is to present simple algorithms and make them available online. The main result is a way to 'switch' between different frames, giving an…

泛函分析 · 数学 2009-02-12 Peter Balazs

We consider the decomposition of bounded linear operators on Hilbert spaces in terms of functions forming frames. Similar to the singular-value decomposition, the resulting frame decompositions encode information on the structure and…

数值分析 · 数学 2021-05-26 Simon Hubmer , Ronny Ramlau

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

In this paper, firstly, some applications of Hilbert matrix in image processing and cryptology are mentioned and an algorithm related to the Hilbert view of a digital image is given. In section 2, the new matrix domains are constructed and…

泛函分析 · 数学 2016-09-07 Murat Kirişci , Harun Polat

This study aims at combining the concepts of $g$-frame and $K$-frame for a Hilbert $C^*$-module $U$, for an operator $K \in End^*_A(U)$, where $End^*_A(U)$ contains all adjointable $A$-linear maps on $U$. As a result, continuous…

泛函分析 · 数学 2024-10-07 Jahangir Cheshmavar , Javad Baradaran , Asadollah Hossienpour

In this paper, we obtain a new type of inequalities for frames, which are parametrized by a parameter \lambda\in R . By suitable choices of {\lambda}, one obtains the previous results as special cases. Our new proof also makes the…

泛函分析 · 数学 2018-09-06 Dongwei Li

Frames have been investigated frequently over the last few decades due to their valuable properties, which are desirable for various applications as well as interesting for theory. Some applications additionally require distributed…

泛函分析 · 数学 2024-07-09 Lukas Köhldorfer , Peter Balazs

This paper is a detailed study of finite-dimensional modules defined on bicomplex numbers. A number of results are proved on bicomplex square matrices, linear operators, orthogonal bases, self-adjoint operators and Hilbert spaces, including…

泛函分析 · 数学 2011-08-10 Raphael Gervais Lavoie , Louis Marchildon , Dominic Rochon

In this paper, we aim to introduce and characterize the concept of numerical radius orthogonality of operators on a complex Hilbert space $\mathcal{H}$ which are bounded with respect to the semi-norm induced by a positive operator $A$ on…

泛函分析 · 数学 2024-08-13 Pintu Bhunia , Kais Feki , Kallol Paul

Frames for operators or k-frames were recently considered by Gavruta (2012) in connection with atomic systems. Also generalized frames are important frames in the Hilbert space of bounded linear operators. Fusion frames, which are a special…

泛函分析 · 数学 2018-06-12 Vahid Sadri , Reza Ahmadi , Asghar Rahimi

Frame Theory has a great revolution in recent years. This Theory have been extended from Hilbert spaces to Hilbert $C^{\ast}$-modules. In this paper we consider the stability of continuous operator frame and continuous $K$-operator frames…

泛函分析 · 数学 2021-01-13 A. Touri

In this paper, we introduce controlled frames in Hilbert $C^*$-modules and we show that they share many useful properties with their corresponding notions in Hilbert space. Next, we give a characterization of controlled frames in Hilbert…

算子代数 · 数学 2017-05-02 Mehdi Rashidi-Kouchi , Asghar Rahimi

A dual frames multiplier is an operator consisting of analysis, multiplication and synthesis processes, where the analysis and the synthesis are made by two dual frames in a Hilbert space, respectively. In this paper we investigate the…

泛函分析 · 数学 2023-10-31 Rosario Corso

In this papers we investigate the g-frame and Bessel g-sequence related to a linear bounded operator $K$ in Hilbert $C^{\ast}$-module and we establish some results.

算子代数 · 数学 2019-01-15 H. Labrigui , A. Touri , S. Kabbaj

Frames formed by orbits of vectors through the iteration of a bounded operator have recently attracted considerable attention, in particular due to its applications to dynamical sampling. In this article, we consider two commuting bounded…

泛函分析 · 数学 2023-05-18 A. Aguilera , C. Cabrelli , D. Carbajal , V. Paternostro

In this note we investigate the operators associated with frame sequences in a Hilbert space $H$, i.e., the synthesis operator $T:\ell ^{2}(\mathbb{N}) \to H$, the analysis operator $T^{\ast}:H\to $ $% \ell ^{2}(\mathbb{N}) $ and the…

泛函分析 · 数学 2012-05-31 P. Balazs , M. A. El-Gebeily

Finite geometry is employed to underpin operators in finite, d, dimensional Hilbert space. The central role of mutual unbiased bases (MUB) states projectors is exhibited. Interrelation among operators in Hilbert space, revealed through…

量子物理 · 物理学 2011-12-21 M. Revzen

We introduce the concept of frame of multipliers in Hilbert modules over pro-C*-algebras and show that many properties of frames in Hilbert C*-modules are valid for frames of multipliers in Hilbert modules over pro-C*-algebras.

算子代数 · 数学 2007-09-07 Maria Joita

Certain results about frames are extended for the new frames in Hilbert C*-modules. In this paper, we introduce the notion of A-2-frames in A-2-inner product spaces and give some characterizations for these frames. Then we define the tensor…

泛函分析 · 数学 2022-08-16 B. Mohebbi Najmabadi , T. L. Shateri