The Use of Refined Harmonic Shifts in the Implicitly Restarted Refined Harmonic Arnoldi Method |
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| Authors: | Guizhi Chen |
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| Institution: | (1) Department of Mathematics, Xiamen University, Xiamen, 361005, P.R. China |
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| Abstract: | This paper proposes a new shift scheme, called refined harmonic shifts, for use in the implicitly restarted refined harmonic Arnoldi method. Numerical experiments show that the implicitly restarted refined harmonic Arnoldi algorithm with refined harmonic shifts is better than the implicitly restarted harmonic Arnoldi algorithm with Morgan's harmonic shifts and the refined harmonic shifts are as efficient as Jia's refined shifts. |
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| Keywords: | harmonic Arnoldi refined harmonic Arnoldi harmonic shifts refined shifts |
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