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MiS Preprint

Hierarchical LU decomposition based preconditioners for BEM

Mario Bebendorf


The adaptive cross approximation method can be used to efficiently approximate stiffness matrices arising from boundary element applications by hierarchical matrices. In this article an approximative LU decomposition in the same format is presented which can be used for preconditioning the resulting coefficient matrices efficiently. If the LU decomposition is computed with high precision, it may even be used as a direct yet efficient solver.

MSC Codes:
65F05, 65F30, 65F50
hierarchical matrices, fast solvers, boundary elements

Related publications

2005 Repository Open Access
Mario Bebendorf

Hierarchical LU decomposition-based preconditioners for BEM

In: Computing, 74 (2005) 3, pp. 225-247