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On convergence of ICCG applied to finite-element equation for quasi-static fields

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2 Author(s)
Igarashi, H. ; Graduate Sch. of Eng., Hokkaido Univ., Kita, Japan ; Honma, T.

This paper discusses convergence of the incomplete Cholesky conjugate gradient method (ICCG) which solves edge-based finite-element equations for quasi-static electromagnetic fields. It has been observed in numerical computations that convergence of ICCG for the A-V method is faster than that for the A method. This phenomenon is found to be explained by the fact that, in the A-V method, the preconditioning eliminates the small singular values which deteriorate the condition number while they remain after the preconditioning in the case of the A method

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Magnetics, IEEE Transactions on  (Volume:38 ,  Issue: 2 )