Krylov improvements of the Uzawa method for Stokes type operator matrices
نویسندگان
چکیده
Abstract The paper is devoted to Krylov type modifications of the Uzawa method on operator level for Stokes problem in order accelerate convergence. First block preconditioners and their effect convergence are studied. Then it shown that a Krylov–Uzawa iteration produces superlinear smooth domains, estimation given its speed.
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ژورنال
عنوان ژورنال: Numerische Mathematik
سال: 2021
ISSN: ['0945-3245', '0029-599X']
DOI: https://doi.org/10.1007/s00211-021-01208-5