
doi: 10.3390/mca23010010
The restarted CMRH method (changing minimal residual method based on the Hessenberg process) using fewer operations and storage is an alternative method to the restarted generalized minimal residual method (GMRES) method for linear systems. However, the traditional restarted CMRH method, which completely ignores the history information in the previous cycles, presents a slow speed of convergence. In this paper, we propose a heavy ball restarted CMRH method to remedy the slow convergence by bringing the previous approximation into the current search subspace. Numerical examples illustrate the effectiveness of the heavy ball restarted CMRH method.
T57-57.97, Iterative numerical methods for linear systems, Applied mathematics. Quantitative methods, linear systems, QA75.5-76.95, Hessenberg, GMRES, heavy ball methods, Electronic computers. Computer science, QA1-939, CMRH, Mathematics
T57-57.97, Iterative numerical methods for linear systems, Applied mathematics. Quantitative methods, linear systems, QA75.5-76.95, Hessenberg, GMRES, heavy ball methods, Electronic computers. Computer science, QA1-939, CMRH, Mathematics
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