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Showing 1 to 3 of 3 for “"coarse grid correction"”.
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Domain decomposition methods for time-harmonic elastic waves
… numerically two-level preconditioners,based on a coarse grid correction, this very simple idea giving promising results.
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Domain decomposition preconditioners for higher-order discontinuous Galerkin discretizations
… for the HDG discretization. An algebraic coarse space for the ASM preconditioner is developed based on the solution of local harmonic problems. The BDDC preconditioner is proven to converge at a rate independent of the number of subdomains and only weakly dependent on the solution order or …
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Unified conformal/nonconformal domain decomposition methods for solving large-scale multi-region electromagnetic problems
… method, the two methods formulate a global coarse problem related to the degrees of freedom at the subdomain corner edges to propagate the residual error to the whole computational domain in the iterative solution of the global interface equation. Second, higher-order transmission conditions …