Abstract
In this paper, we compare the direct boundary element method (BEM) and the dual reciprocity boundary element method (DRBEM) for solving the direct interior Helmholtz problem, in terms of their numerical accuracy and efficiency, as well as their applicability and reliability in the frequency domain. For BEM formulation, there are two possible choices for fundamental solutions, which can lead to quite different conclusions in terms of their reliability in the frequency domain. For DRBEM formulation, it is shown that although the DBREM can correctly predict eigenfrequencies even for higher modes, it fails to yield a reasonably accurate numerical solution for the problem when the frequency is higher than the first eigenfrequency.
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2000 Mathematics Subject Classification:
primary 65N38; secondary 35Q35

(Metadata: XML, RSS, BibTeX) 
MathSciNet:
MR2378154 
Z'blattMATH:
pre05243896 
^{†}indicates author for correspondence 
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