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On two-dimensional infinite elements utilizing basis functions with compact support

✍ Scribed by Andrzej J. Safjan; Michael Newman

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 725 KB
Volume: 190
Category: Article
ISSN: 0045-7825
DOI: 10.1016/s0045-7825(01)00239-0

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✦ Synopsis

In this paper improvements are made in the numerical conditioning of in®nite element stiness matrices by replacing the characteristic (eigenfunction) basis functions which have global support with basis functions which have local support and appropriate preconditioning. The conditioning and convergence properties of these new in®nite elements are presented in solving two-dimensional exterior problems for the Helmholtz equation.

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