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相关论文: On frames in Hilbert modules over pro-C*-algebras

200 篇论文

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

In this paper we view some fundamentals of the theory of Hilbert C*-modules and examine some ways in which Hilbert C*-modules differ from Hilbert spaces.

算子代数 · 数学 2008-08-21 Mohammad Sal Moslehian

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, we investigate the structure of the multiplier module of a Hilbert module over a locally C*-algebra and the relationship between the set of all adjointable operators from a Hilbert A-module E to a Hilbert A-module F and the…

算子代数 · 数学 2007-07-10 Maria Joita

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

In the paper we describe the C*-algebras of noncommutative spherical tight frames over some C*-algebras and then apply to study the noncommutative version of the universal classifying space.

K理论与同调 · 数学 2007-05-23 Do Ngoc Diep

In this paper, we will introduce the concept of a continuous biframe for Hilbert $ C^{\ast}- $modules. Then, we examine some characterizations of this biframe with the help of an invertible and adjointable operator is given. Moreover, we…

泛函分析 · 数学 2025-03-24 Abdellatif Lfounoune , Abdelilah Karara , Mohamed Rossafi

We introduce a notion of Krein C*-module over a C*-algebra and more generally over a Krein C*-algebra. Some properties of Krein C*-modules and their categories are investigated.

算子代数 · 数学 2014-09-05 Paolo Bertozzini , Kasemsun Rutamorn

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

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

We investigate the structured frames for Hilbert $C^{*}$-modules. In the case that the underlying $C^{*}$-algebra is a commutative $W^*$-algebra, we prove that the set of the Parseval frame generators for a unitary operator group can be…

泛函分析 · 数学 2007-05-23 Wu Jing , Deguang Han , Ram Mohapatra

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

A study of Hilbert $C^*$-bimodules over commutative $C^*$-algebras is carried out and used to establish a sufficient condition for two quantum Heisenberg manifolds to be isomorphic.

funct-an · 数学 2009-10-28 Beatriz Abadie , Ruy Exel

This is a graduate-level introduction to C*-algebras, Hilbert C*-modules, vector bundles, and induced representations of groups and C*-algebras, with applications to quantization theory, phase space localization, and configuration space…

数学物理 · 物理学 2007-05-23 N. P. Landsman

A Hilbert $C^*$-quad module of finite type has a multi structure of Hilbert $C^*$-bimodules with two finite bases. We will construct a $C^*$-algebra from a Hilbert $C^*$-quad module of finite type and prove its universality subject to…

算子代数 · 数学 2013-10-01 Kengo Matsumoto

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

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 give new characterizations of modular Riesz bases in Hilbert $C^*$-modules. We prove that modular Riesz bases share many properties with Riesz bases in Hilbert spaces. Moreover we show that there are also important…

泛函分析 · 数学 2019-10-17 Marzieh Hasannasab

We construct an example of a Hilbert C*-module which shows that Troitsky's theorem on the geometrical essence of A-compact operators between Hilbert C*-modules is not extendable to a not countably generated module case (even in the case of…

算子代数 · 数学 2022-08-02 Denis Fufaev

We study closedness of the range, adjointability and generalized invertibility of modular operators between Hilbert modules over locally C*-algebras of coefficients. Our investigations and the recent results of M. Frank [Characterizing…

算子代数 · 数学 2011-08-31 Kamran Sharifi