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Incremental unknowns in three-dimensional stationary problem

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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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Authors and Affiliations

  1. School of Mathematics and Statistics, University of Lanzhou, Lanzhou, 730000, Gansu, China

    Lunji Song & Yujiang Wu

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  1. Lunji Song
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  2. Yujiang Wu
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Correspondence to Lunji Song.

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Song, L., Wu, Y. Incremental unknowns in three-dimensional stationary problem. Numer Algor 46, 153–171 (2007). https://doi.org/10.1007/s11075-007-9133-z

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  • DOI: https://doi.org/10.1007/s11075-007-9133-z

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