A residual-based a posteriori error estimator for the Ciarlet-Raviart formulation of the first biharmonic problem

✍ Scribed by Alain Charbonneau; Kokou Dossou; Roger Pierre

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 550 KB
• Volume: 13
• Category: Article
• ISSN: 0749-159X
• DOI: 10.1002/(sici)1098-2426(199701)13:1<93::aid-num7>3.0.co;2-h

✦ Synopsis

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 viability of the method.