Results 31 to 40 of about 86,530 (254)

K-g-fusion frames in Hilbert spaces

open access: yesJournal of Inequalities and Applications, 2020
K-g-fusion frames are generalizations of fusion frames, K-fusion frames and g-fusion frames. In this paper, we present some new characterizations of K-g-fusion frames and tight K-g-fusion frames, and give several properties of K-g-fusion frames by means ...
Yongdong Huang, Yuanyuan Yang
doaj   +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

Woven K-g-Fusion Frames in Hilbert C∗-Modules

open access: yesEuropean Journal of Mathematical Analysis, 2023
In this paper, we introduced the notion of woven K-g-fusion frames in Hilbert C∗-modules. We present necessary and sufficient conditions for these woven and also construct them by linear bounded operator.
Fakhr-dine Nhari, Mohamed Rossafi
doaj   +1 more source

WEIGHTED RIESZ BASES IN G-FUSION FRAMES AND THEIR PERTURBATION

open access: yesПроблемы анализа, 2020
In this paper, we introduce orthonormal and Riesz bases for g-fusion frames and show that the weights have basic roles. Next, we prove an effective theorem between frames and g-fusion frames by using an operator. Finally, perturbations of g-fusion frames
Gh. Rahimlou, V. Sadri, R. Ahmadi
doaj   +1 more source

Generalized atomic subspaces for operators in Hilbert spaces [PDF]

open access: yesMathematica Bohemica, 2022
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.
Prasenjit Ghosh, Tapas Kumar Samanta
doaj   +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

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

Night Vision Anti-Halation Method Based on Infrared and Visible Video Fusion

open access: yesSensors, 2022
In order to address the discontinuity caused by the direct application of the infrared and visible image fusion anti-halation method to a video, an efficient night vision anti-halation method based on video fusion is proposed.
Quanmin Guo, Hanlei Wang, Jianhua Yang
doaj   +1 more source

Fusion Tracker:Single-object Tracking Framework Fusing Image Features and Event Features [PDF]

open access: yesJisuanji kexue, 2023
Object tracking is a fundamental research problem in the field of computer vision.As the mainstream object tracking method sensor,conventional cameras can provide rich scene information.However,due to the limitation of sampling principle,conventional ...
WANG Lin, LIU Zhe, SHI Dianxi, ZHOU Chenlei, YANG Shaowu, ZHANG Yongjun
doaj   +1 more source

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