Publications in Scientific Journals:

C. Carstensen, M. Maischak, E. Stephan, D. Praetorius:
"Residual-based a posteriori error estimate for hypersingular equation on surfaces";
Numerische Mathematik, 97 (2004), 3; 397 - 426.

English abstract:
The hypersingular integral equation of the first kind equivalently
describes screen and Neumann problems on an open surface piece. The
paper establishes a computable upper error bound for its Galerkin
approximation and so motivates adaptive mesh refining algorithms.
Numerical experiments for triangular elements on a screen provide
empirical evidence of the superiority of adapted over uniform
mesh-refining. The numerical realisation requires the evaluation of
the hypersingular integral operator at a source point; this and\
other details on the algorithm are included.

Electronic version of the publication:

Created from the Publication Database of the Vienna University of Technology.