An a posteriori error estimator for a quadratic C0-interior penalty method for the biharmonic problem

Abstract

A reliable and efficient residual-based a posteriori error estimator is derived for a quadratic C0-interior penalty method for the biharmonic problem on polygonal domains. The performance of the estimator is illustrated by numerical experiments. © 2009 The author. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved.