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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

We study the concept of frame in tensor product of n-Hilbert spaces as tensor product of n-Hilbert spaces is again a n-Hilbert space. We generalize some of the known results about bases to frames in this new Hilbert space. A relationship…

泛函分析 · 数学 2024-03-07 Prasenjit Ghosh , Tapas Kumar Samanta

The concept of a bi-g-fusion frame for a Hilbert space, which is a generalizations of a controlled g-fusion frame, is introduced and an example is given. Finally, bi-g-fusion frame in tensor product of Hilbert spaces is considered.

泛函分析 · 数学 2024-11-05 Prasenjit Ghosh , T. K. Samanta

Continuous frames and tensor products are important topics in theoretical physics. This paper combines those concepts. We derive fundamental properties of continuous frames for tensor product of Hilbert spaces. This includes, for example,…

泛函分析 · 数学 2022-03-23 Peter Balazs , Nenad Teofanov

We introduce the notion of a continuous biframe in a Hilbert space which is a generalization of discrete biframe in Hilbert space. Representation theorem for this type of generalized frame is verified and some characterizations of this…

泛函分析 · 数学 2023-09-15 Prasenjit Ghosh , T. K. Samanta

We introduce the notion of continuous frame in n-Hilbert space which is a generalization of discrete frame in n-Hilbert space. The tensor product of Hilbert spaces is a very important topic in mathematics. Here we also introduce the concept…

泛函分析 · 数学 2024-03-07 Prasenjit Ghosh , T. K. Samanta

The concepts of controlled frames and it's dual in n-Hilbert spaces and their tensor products have been introduced and then some of their characterizations are given. We further study the relationship between controlled frame and bounded…

泛函分析 · 数学 2021-09-06 Prasenjit Ghosh , T. K. Samanta

For finding the numerical solution of operator equations in many applications a decomposition in subspaces is needed. Therefore, it is necessary to extend the known method of matrix representation to the utilization of fusion frames. In…

泛函分析 · 数学 2020-07-14 Peter Balazs , Mitra Shamsabadi , Ali Akbar Arefijamaal , Chilles Gardon

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

We introduce the notion of continuous controlled g-fusion frame in Hilbert space which is the generalization of discrete controlled g-fusion frame and give an example. Some characterizations of continuous controlled g-fusion frame have been…

泛函分析 · 数学 2021-10-22 Prasenjit Ghosh , T. K. Samanta

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

In this article we develop a theory for frames in tensor product of Hilbert spaces. We show that like bases if Y_1, Y_2, \cdot \cdot \cdot, Y_n are frames for H_1,H_2, \cdot \cdot \cdot, H_n, respectively, then…

泛函分析 · 数学 2012-04-03 Amir Khosravi , Mohammad Sadegh Asgari

A generalization of continuous biframe in a Hilbert space is introduced and a few examples are discussed. Some characterizations and algebraic properties of this biframe are given. Here we also construct various types of continuous…

泛函分析 · 数学 2024-03-06 Prasenjit Ghosh , T. K. Samanta

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

In this article, we study tensor product of Hilbert $C^*$-modules and Hilbert spaces. We show that if $E$ is a Hilbert $A$-module and $F$ is a Hilbert $B$-module, then tensor product of frames (orthonormal bases) for $E$ and $F$ produce…

算子代数 · 数学 2007-05-23 Amir Khosravi , Behrooz Khosravi

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

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

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

Tensor product operators on finite dimensional Hilbert spaces are studied. The focus is on bilinear tensor product operators. A tensor product operator on a pair of Hilbert spaces is a maximally general bilinear operator into a target…

量子物理 · 物理学 2021-06-30 Howard A. Blair , H Shelton Jacinto , Paul M. Alsing

We present an inequality for tensor product of positive operators on Hilbert spaces by considering the tensor product of operators as words on certain alphabets (i.e., a set of letters). As applications of the operator inequality and by a…

泛函分析 · 数学 2015-02-23 Xaixia Chang , Vehbi E. Paksoy , Fuzhen Zhang
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