Multilevel preconditioners for Lagrange multipliers in domain imbedding

zbMath1030.65129MaRDI QIDQ1407706

Jari Toivanen, Janne Martikainen, Tuomo Rossi

Publication date: 17 September 2003

Published in: ETNA. Electronic Transactions on Numerical Analysis (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/123214

zbMATH Keywords

Lagrange multipliersnumerical experimentspreconditioningconjugate gradient methodmultilevel methodssaddle-point problemBPX/MDS methoddomain imbedding methodPMINRES method

Mathematics Subject Classification ID

Multigrid methods; domain decomposition for boundary value problems involving PDEs (65N55) Boundary value problems for second-order elliptic equations (35J25) Iterative numerical methods for linear systems (65F10) Numerical computation of matrix norms, conditioning, scaling (65F35) Numerical solution of discretized equations for boundary value problems involving PDEs (65N22)

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