A note on preconditioner for the Ohta-Kawasaki equation.

Rui-Xia Li,Zhao-Zheng Liang,Guo-Feng Zhang,Li-Dan Liao,Lei Zhang

Applied Mathematics Letters（2018）

引用 9|浏览6

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摘要

In this paper, an efficient preconditioner is proposed for the discrete Ohta–Kawasaki system. We show that the eigenvalues of the new preconditioned matrix are the same as that of the recently published block triangular preconditioner in [P. E. Farrell, J. W. Pearson, SIAM J. Matrix Anal. Appl. 38(1) (2017) 217–225]. Numerical experiments are presented to illustrate the effectiveness and feasibility of the new preconditioner to accelerate GMRES method.

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关键词

Ohta–Kawasaki equation,Preconditioning,Krylov subspace method,Spectral analysis

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