Preconditioning for Mixed Finite Element Formulations of Elliptic Problems
作者： Tim Wildey , Guangri Xue
DOI: 10.1007/978-3-642-35275-1_19
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摘要: In this paper, we discuss a preconditioning technique for mixed finite element discretizations of elliptic equations. The is based on block-diagonal approximation the mass matrix which maintains sparsity and positive definiteness corresponding Schur complement. This preconditioner arises from multipoint flux method robust with respect to mesh size better conditioned full permeability tensors than diagonal matrix.
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