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Previous: Inexact Solves
Up: Multiplicative Schwarz Methods
Next: Choice of Coarse Grid Size H
Previous Page: Inexact Solves
Next Page: Choice of Coarse Grid Size H
The preconditioners given above extend naturally to nonsymmetric
's ( e.g., convection-diffusion problems), at least when the
nonsymmetric part is not too large. The nice theoretical convergence
rates can be retained provided that the coarse grid size
is chosen
small enough (depending on the size of the nonsymmetric part of
)
(see Cai and Widlund [42]).