Results 21 to 30 of about 198,108 (300)

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

Generalized fusion frame in Quaternionic Hilbert spaces

open access: yes, 2022
We introduce the notion of a generalized fusion frame in quaternionic Hilbert space. A characterization of generalized fusion frame in quaternionic Hilbert space with the help of frame operator is being discussed.
Ghosh, Prasenjit
core   +1 more source

Automotive radar image segmentation with frame fusion

open access: yes, 2022
Image segmentation on automotive radar imagery is the key technique for identifying the passable and impassable regions for path planning in autonomous or assistive driving.
Cherniakov, Mike   +7 more
core   +1 more source

SOME IDENTITIES AND INEQUALITIES FOR G-FUSION FRAMES

open access: yesПроблемы анализа, 2020
G-fusion frames, which are obtained from the combination of g-frames and fusion frames, were recently introduced for Hilbert spaces. In this paper, we present a new identity for gframes, which was given by Najati for a special case.
R. Zarghami Farfar, V. Sadri, R. Ahmadi
doaj   +1 more source

Fusion frames and g-frames

open access: yesJournal of Mathematical Analysis and Applications, 2008
The authors study generalized, i.e., \(g\)-frames in a Hilbert space \(U\), that is, sequences \((\Lambda_i)_{i\in I}\) of linear operators \(\Lambda_i:U\to V_i\) such that \[ A\| f\| ^2 \leq \sum_{i\in I} \| \Lambda_i f\| ^2 \leq B \| f\| ^2, \] for some positive constants \(A\) and \(B\).
Khosravi, Amir, Musazadeh, Kamran
openaire   +1 more source

The effect of perturbations of frames and fusion frames on their redundancies [PDF]

open access: yesGeorgian Mathematical Journal, 2018
Abstract An interesting question about the perturbed sequences is: when do they inherit the properties of the original one? An elegant relation between frames (fusion frames) and their perturbations is the relation of their redundancies. In this paper, we investigate these relationships.
Rahimi, Asghar   +2 more
openaire   +2 more sources

On the duality of frames and fusion frames

open access: yesHacettepe Journal of Mathematics and Statistics, 2017
Optimal frame bounds play a key role in many applications of frame theory, such as filter banks. In this paper, we study the relation between the bounds of a frame and its alternate dual and then present some approach to construct a family of Parseval frames. Also, we survey some problems on duals of fusion frames.
AREFİJAMAAL, Ali Akbar   +2 more
openaire   +3 more sources

Relay fusion frames for Hilbert spaces

open access: yesJournal of Inequalities and Applications, 2019
A new notion of frames, called the relay fusion frames, for Hilbert spaces has been introduced by the authors. It provides a mathematical framework for applications that require the transmission of signals over long distances or need to expand the ...
Guoqing Hong, Pengtong Li
doaj   +1 more source

Oblique Dual Fusion Frames [PDF]

open access: yesNumerical Functional Analysis and Optimization, 2018
We introduce and develop the concept of oblique duality for fusion frames. This concept provides a mathematical framework to deal with problems in distributed signal processing where the signals, considered as elements in a Hilbert space and under certain consistency requirements, are analyzed in one subspace and are reconstructed in another subspace.
Heineken, Sigrid Bettina   +1 more
openaire   +3 more sources

Generalized fusion frame in tensor product of Hilbert spaces

open access: yes, 2021
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.
Samanta, Tapas Kumar, Ghosh, Prasenjit
core   +1 more source

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