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相关论文: A module frame concept for Hilbert C*-modules

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We present a general approach to a modular frame theory in C*-algebras and Hilbert C*-modules. The investigations rely on the idea of geometric dilation to standard Hilbert C*-modules over unital C*-algebras that possess orthonormal Hilbert…

算子代数 · 数学 2025-05-08 Michael Frank , David R. Larson

We give a comprehensive introduction to a general modular frame construction in Hilbert C*-modules and to related modular operators on them. The Hilbert space situation appears as a special case. The reported investigations rely on the idea…

算子代数 · 数学 2025-05-08 Michael Frank , David R. Larson

Our main goal in this paper, is to generalize to Hilbert C*-modules the concept of fusion frames. Indeed we introduce the notion of *\~nfusion frames associated to weighted sequences of orthogonally complemented submodules of a Hilbert…

综合数学 · 数学 2023-08-22 Nadia Assila , Samir Kabbaj , Hicham Zoubeir

The goal of the present paper is to extend the theory of frames for countably generated Hilbert $C^*$-modules over arbitrary $C^*$-algebras. In investigating the non-unital case we introduce the concept of outer frame as a sequence in the…

算子代数 · 数学 2015-07-16 Ljiljana Arambašić , Damir Bakić

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

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

We consider projectivity and injectivity of Hilbert C*-modules in the categories of Hilbert C*-(bi-)modules over a fixed C*-algebra of coefficients (and another fixed C*-algebra represented as bounded module operators) and bounded…

算子代数 · 数学 2008-02-18 Michael Frank , Vern I. Paulsen

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

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

In the present paper, we examine the perturbation of continuous frames and Riesz-type frames in Hilbert $C^*$-modules. We extend the Casazza-Christensen general perturbation theorem for Hilbert space frames to continuous frames in Hilbert…

泛函分析 · 数学 2023-05-23 Hadi Ghasemi , Tayebe Lal Shateri

The duality principle for Gabor frames is one of the pillars of Gabor analysis. We establish a far-reaching generalization to Morita equivalent $C^*$-algebras where the equivalence bimodule is a finitely generated projective Hilbert…

算子代数 · 数学 2019-05-07 Are Austad , Mads S. Jakobsen , Franz Luef

We continue our study of the general theory of possibly nonselfadjoint algebras of operators on a Hilbert space, and modules over such algebras, developing a little more technology to connect `nonselfadjoint operator algebra' with the…

算子代数 · 数学 2007-05-23 David P. Blecher

In a recent paper of the first author and Kashyap, a new class of modules over dual operator algebras is introduced. These generalize the W*-modules (that is, Hilbert C*-modules over a von Neumann algebra which satisfy an analogue of the…

算子代数 · 数学 2009-10-29 David P Blecher , Jon E Kraus

Analogues for Hilbert C*-modules of classical results of Fourier series theory in Hilbert spaces are considered. Relations between different properties of orthogonal and orthonormal systems for Hilbert C*-modules are studied with special…

算子代数 · 数学 2009-06-05 Giovanni Landi , Alexander Pavlov

Frame theory has a great revolution in recent years. This new Theory have been extended from Hilbert spaces to Hilbert C*-modules. In this paper, we introduce the notion of dual *-K-g-frames in Hilbert A-modules. Lastly we study…

算子代数 · 数学 2021-10-01 M'hamed Ghiati , Samir Kabbaj , Hatim Labrigui , Abdeslam Touri , Mohamed Rossafi

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

This paper explores the concept of $K$-$g$-frames in locally $C^*$-algebras, which are shown to be more general than $g$-frames. The authors first introduce the notion of a $g$-orthonormal basis and utilize it to define the $g$-operator, a…

算子代数 · 数学 2024-05-30 Roumaissae Eljazzar , Mohammed Mouniane , Mohamed Rossafi

In the present paper the notion of a Hilbert module over a locally C*-algebra is discussed and some results are obtained on this matter. In particular, we give a detailed proof of the known result that the set of adjointable endomorphisms…

算子代数 · 数学 2007-05-23 Yu. I. Zhuraev , F. Sharipov

Frames on Hilbert C*-modules have been defined for unital C*-algebras by Frank and Larson and operator valued frames on a Hilbert space have been studied in arXiv.0707.3272v1.[math.FA]. Goal of the present paper is to introduce operator…

算子代数 · 数学 2007-09-26 Victor Kaftal , David Larson , Shuang Zhang

Frame Theory has a great revolution for recent years. This Theory has been extended from Hilbert spaces to Hilbert $C^{\ast}$-modules. The purpose of this paper is the introduction and the study of the new concept that of Continuous…

泛函分析 · 数学 2020-07-08 Abdeslam Touri , Hatim Labrigui , Samir Kabbaj
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