## Abstract An efficient preconditioner is developed for solving the Helmholtz problem in both high and low frequency (wavenumber) regimes. The preconditioner is based on hierarchical unknowns on nested grids, known as incremental unknowns (IU). The motivation for the IU preconditioner is provided
Incremental unknowns for solving partial differential equations
โ Scribed by Min Chen; Roger Temam
- Book ID
- 105172546
- Publisher
- Springer-Verlag
- Year
- 1991
- Tongue
- English
- Weight
- 637 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0029-599X
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