Error estimation for boundary element method

In this paper, six error indicators obtained from dual boundary integral eq uations are used for local estimation, which is an essential ingredient for all adaptive mesh schemes in BEM. Computational experiments are carried ou t for the two-dimensional Laplace equation. The curves of all these six err or estimators are in good agreement with the shape of the error curve. The results show that the adaptive mesh based on any one of these six error ind icators converges faster than does equal mesh discretization. (C) 1999 Else vier Science Ltd. All rights reserved.