Abstract
This article proposes a strong convergence CQ relaxed iterative method with alternated inertial extrapolation step in a real Hilbert space. The propose method converges strongly under some suitable and easy to verify assumptions. Moreover, the proposed method does not require the prior knowledge of the operator norm or estimate of the matrix norm. Instead, the stepsize is self-adaptive with a simple selection procedure that does not involve any linesearch procedure. Numerical experiments to illustrate the computational performance together with implementation of the proposed method in signal recovery application is presented. Additionally, comparison of the method with some existing iterative methods in the literature is performed.
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Acknowledgements
The authors acknowledge the financial support provided by the Center of Excellence in Theoretical and Computational Science (TaCS-CoE), KMUTT. The first, third and fourth authors were supported by Petchra Pra Jom Klao Ph.D. Research Scholarship from King Mongkut’s University of Technology Thonburi, Thailand (Grant nos. 38/2018, 37/2018 and 16/2018, respectively). Moreover, this research was funded by King Mongkut’s University of Technology North Bangkok, Contract no. KMUTNB-65-KNOW-28.
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Communicated by Antonio José Silva Neto.
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This project was supported by Petchra Pra Jom Klao Doctoral Academic Scholarship for Ph.D. Program at KMUTT. Moreover, this research was funded by Thailand Science Research and Innovation Fund, and King Mongkut’s University of Technology North Bangkok with Contract no. KMUTNB-BasicR-64-22.
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Abubakar, J., Kumam, P., Taddele, G.H. et al. Strong convergence of alternated inertial CQ relaxed method with application in signal recovery. Comp. Appl. Math. 40, 310 (2021). https://doi.org/10.1007/s40314-021-01567-7
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DOI: https://doi.org/10.1007/s40314-021-01567-7
Keywords
- Split feasibility problem
- Strong convergence
- Half-space
- Inertial technique
- Inverse problem
- Compressed sensing