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On computing quadrature-based bounds for theA-norm of the error in conjugate gradients

✍ Scribed by Gérard Meurant, Petr Tichý

Book ID
118807640
Publisher
Springer US
Year
2012
Tongue
English
Weight
598 KB
Volume
62
Category
Article
ISSN
1017-1398

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Guaranteed computable bounds for the exact error in the finite element solution—Part II: bounds for the energy norm of the error in two dimensions
✍ T. Strouboulis; I. Babuška; S. K. Gangaraj 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 551 KB

This paper addresses the computation of guaranteed upper and lower bounds for the energy norm of the exact error in the ÿnite element solution. These bounds are constructed in terms of the solutions of local residual problems with equilibrated residual loads and are rather sharp, even for coarse mes