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A posteriori estimation of the linearization error for strongly monotone nonlinear operators

We investigate the a posteriori estimation of the modeling (or linearization) error which arises when a nonlinear problem is replaced by a linear model. Using the context of strongly monotone operators, we construct a computable upper estimator for this error, and also provide an estimator that give...

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Bibliographic Details
Published in:Journal of computational and applied mathematics 2007-08, Vol.205 (1), p.72-87
Main Authors: Chaillou, Alexandra, Suri, Manil
Format: Article
Language:English
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Summary:We investigate the a posteriori estimation of the modeling (or linearization) error which arises when a nonlinear problem is replaced by a linear model. Using the context of strongly monotone operators, we construct a computable upper estimator for this error, and also provide an estimator that gives a lower bound. Several numerical results illustrating our theory are provided.
ISSN:0377-0427
1879-1778
DOI:10.1016/j.cam.2006.04.041