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Convergence analysis of the Schwarz algorithm and multilevel decomposition iterative methods. II: Nonselfadjoint and indefinite elliptic problems. (English) Zbl 0777.65066

MSC:
65N55 Multigrid methods; domain decomposition for boundary value problems involving PDEs
65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs
65N12 Stability and convergence of numerical methods for boundary value problems involving PDEs
65F10 Iterative numerical methods for linear systems
35J25 Boundary value problems for second-order elliptic equations
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