Results 31 to 40 of about 282,423 (243)

$G$-dual Frames in Hilbert $C^{*}$-module Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
In this paper, we introduce the concept of $g$-dual frames for Hilbert $C^{*}$-modules, and then the properties and stability results of $g$-dual frames  are given.
Fatemeh Ghobadzadeh, Abbas Najati
doaj   +1 more source

On some properties of continuous g-frames and Riesz-type continuous g-frames

open access: yesIndian Journal of Pure and Applied Mathematics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abdollahpour, Mohammad Reza   +1 more
openaire   +1 more source

Approximate Duals of $g$-frames and Fusion Frames in Hilbert $C^ast-$modules [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
In this paper, we study approximate duals of $g$-frames and fusion frames in Hilbert $C^ast-$modules. We get some relations between approximate duals of $g$-frames and biorthogonal Bessel sequences, and using these relations, some results for approximate
Morteza Mirzaee Azandaryani
doaj   +1 more source

Construction of continuous $g$-frames and continuous fusion frames [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2016
A generalization of the known results in fusion frames and $g$-frames theory to continuous fusion frames which defined by M. H. Faroughi and R. Ahmadi, is presented in this study. Continuous resolution of the identity (CRI) is introduced, a new family of
Mahdiyeh Khayyami, Akbar Nazari
doaj  

Controlled Continuous g-Frames in Hilbert C*-Modules

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
Frame Theory has a great revolution in recent years. This Theory have been extended from Hilbert spaces to Hilbert C*-modules. The purpose of this paper is the introduction and the study of the concept of Controlled Continuous g-Frames in Hilbert C ...
Kabbaj S., Labrigui H., Touri A.
doaj   +1 more source

Controlled G-Frames and Their G-Multipliers in Hilbert spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
Multipliers have been recently introduced by P. Balazs as operators for Bessel sequences and frames in Hilbert spaces. These are opera- tors that combine (frame-like) analysis, a multiplication with a fixed sequence ( called the symbol) and synthesis ...
Rahimi Asghar, Fereydooni Abolhassan
doaj   +1 more source

Some Properties of Controlled K-g-Frames in Hilbert C∗-Modules

open access: yesInternational Journal of Analysis and Applications, 2022
This paper is devoted to studying the controlled K-g-frames in Hilbert C∗-modules, some useful results are presented. Also, the concept of controlled K-g-dual frames is given. Finally, we discuss the stability problem for controlled K-g-frames in Hilbert
Rachid Echarghaoui   +3 more
doaj   +1 more source

Eigenvalues and eigenvectors for a $G$-frame operator

open access: yesHacettepe Journal of Mathematics and Statistics, 2020
In this paper, we investigate eigenvalues and eigenvectors of the $g$-frame operator of $\{\Lambda_jP\in B(K,H_j):j\in\mathbb{J}\}$, where $\{\Lambda_j\in B(H,H_j): j\in\mathbb{J}\}$ is a $g$-frame for an $N$-dimensional Hilbert space $H$ and $P$ is a rank $k$ orthogonal projection of $H$ onto $K,$ a closed subspace of $H$.******************************
Azam YOUSEFZADEHEYNİ   +1 more
openaire   +4 more sources

Controlled K−g−Fusion Frames in Hilbert C∗−Modules

open access: yesInternational Journal of Analysis and Applications, 2022
Controlled frames have been the subject of interest because of its ability to improve the numerical efficiency of iterative algorithms for inverting the frame operator.
Mohamed Rossafi, Fakhr-dine Nhari
doaj   +1 more source

Clinical, Histopathological, and Molecular Characterization of Pediatric MN1::ZNF341‐Associated Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver   +25 more
wiley   +1 more source

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