Modified tangential frequency filtering decomposition and its fourier analysis
نویسندگان
چکیده
منابع مشابه
Modified tangential frequency filtering decomposition and its fourier analysis
We present a modification of a tangential frequency filtering decomposition (TFFD) preconditioner [1]. The key idea is to add a “lumping term” ch whose influence can be determined by means of Fourier analysis [2, 3]. For the standard five-point stencil, we derive an optimal order q = 4 3 , and constant c = (2π) 4 3 . With the choice of optimal order of modification, the Fourier results show tha...
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ژورنال
عنوان ژورنال: Numerische Mathematik
سال: 2010
ISSN: 0029-599X,0945-3245
DOI: 10.1007/s00211-010-0298-3