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Krylov improvements...
Krylov improvements of the Uzawa method for Stokes type operator matrices
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- Axelsson, Owe (författare)
- Uppsala universitet,Avdelningen för beräkningsvetenskap,Czech Acad Sci, Inst Geon, Ostrava, Czech Republic.
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- Karatson, Janos (författare)
- Eotvos Lorand Univ, Dept Appl Anal, Budapest, Hungary.;Eotvos Lorand Univ, MTA ELTE Numer Anal & Large Networks Res Grp, Budapest, Hungary.;Budapest Univ Technol & Econ, Dept Anal, Budapest, Hungary.
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(creator_code:org_t)
- 2021-07-05
- 2021
- Engelska.
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Ingår i: Numerische Mathematik. - : Springer. - 0029-599X .- 0945-3245. ; 148:3, s. 611-631
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Abstract
Ämnesord
Stäng
- The paper is devoted to Krylov type modifications of the Uzawa method on the operator level for the Stokes problem in order to accelerate convergence. First block preconditioners and their effect on convergence are studied. Then it is shown that a Krylov-Uzawa iteration produces superlinear convergence on smooth domains, and estimation is given on its speed.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- 65J10
- 65F10
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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