Document Type

Article

Publication Date

1-1-2000

Abstract

Lower bounds for the condition numbers of the preconditioned systems are obtained for two-level additive Schwarz preconditioners. They show that the known upper bounds for both second order and fourth order problems are sharp in the case of a small overlap.

Publication Source (Journal or Book title)

SIAM Journal of Scientific Computing

First Page

1657

Last Page

1669

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