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Recovering lower bounds of the error by postprocessing implicit residual a posteriori error estimates

✍ Scribed by Pedro Díez; Núria Parés; Antonio Huerta

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
958 KB
Volume
56
Category
Article
ISSN
0029-5981

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✍ Alain Charbonneau; Kokou Dossou; Roger Pierre 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 550 KB

In this article we propose a residual-based estimator for the psi-omega formulation of the biharmonic problem. We show how an appropriate modification of Verfürth methodology gives the proper scaling of the residuals leading to both lower and upper estimation. Numerical examples confirm the viabilit