Incremental unknowns in three-dimensional stationary problem |
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Authors: | Lunji Song Yujiang Wu |
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Institution: | (1) School of Mathematics and Statistics, University of Lanzhou, Lanzhou, 730000, Gansu, China |
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Abstract: | The main purpose of this work is to set up the explicit matrix framework appropriate to three-dimensional partial differential
equations by means of the incremental unknowns method. Multilevel schemes of the incremental unknowns are presented in the
three space dimensions, and through numerical experiments, we confirm that the incremental unknowns method is efficient and
the hierarchical preconditioning based on the incremental unknowns can be applied in a more general form.
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Keywords: | Incremental unknowns Finite difference Preconditioning Matrix framework |
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