Preconditioners for the Spectral Multigrid Method
نویسندگان
چکیده
منابع مشابه
p-Multigrid for Fekete spectral element method
Spectral element approximations based on triangular elements and on the so-called Fekete points of the triangle have been recently developed. p-multigrid methods offer an interesting way to resolve efficiently the resulting ill-conditioned algebraic systems. For elliptic problems, it is shown that a well chosen restriction operator and a good set up of the coarse grid matrices may lead to valua...
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ژورنال
عنوان ژورنال: IMA Journal of Numerical Analysis
سال: 1986
ISSN: 0272-4979,1464-3642
DOI: 10.1093/imanum/6.3.273