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장봉수

Jang, Bongsoo
Computational Mathematical Science Lab.
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dc.citation.endPage 1437 -
dc.citation.number 6 -
dc.citation.startPage 1418 -
dc.citation.title NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS -
dc.citation.volume 22 -
dc.contributor.author Oh, Hae-Soo -
dc.contributor.author Yun, Jae-Heon -
dc.contributor.author Jang, Bongsoo -
dc.date.accessioned 2023-12-22T09:40:29Z -
dc.date.available 2023-12-22T09:40:29Z -
dc.date.created 2014-11-11 -
dc.date.issued 2006-11 -
dc.description.abstract The finite element (FE) solutions of a general elliptic equation -div([a ij] · ∇u) + u = f in an exterior domain Ω, which is the complement of a bounded subset of R 3, is considered. The most common approach to deal with exterior domain problems is truncating an unbounded subdomain Ω ∞, so that the remaining part Ω = Ω\Ω̄ ∞) is bounded, and imposing an artificial boundary condition on the resulted artificial boundary Γ a = Ω̄ ∞ ⊂ Ω̄ B. In this article, instead of discarding an unbounded subdomain Ω ∞ and introducing an artificial boundary condition, the unbounded domain is mapped to a unit ball by an auxiliary mapping. Then, a similar technique to the method of auxiliary mapping, introduced by Babuška and Oh for handling the domain singularities, is applied to obtain an accurate FE solution of this problem at low cost. This method thus does have neither artificial boundary nor any restrictions on f. -
dc.identifier.bibliographicCitation NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, v.22, no.6, pp.1418 - 1437 -
dc.identifier.doi 10.1002/num.20151 -
dc.identifier.issn 0749-159X -
dc.identifier.scopusid 2-s2.0-33750590444 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/8643 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33750590444 -
dc.identifier.wosid 000241246500010 -
dc.language 영어 -
dc.publisher WILEY-BLACKWELL -
dc.title Finite element solutions for three-dimensional elliptic boundary value problems on unbounded domains -
dc.type Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor method of auxiliary mapping -
dc.subject.keywordAuthor the p-version of the finite element method -
dc.subject.keywordAuthor weighted Ritz-Galerkin method -
dc.subject.keywordAuthor weighted Sobolev space -
dc.subject.keywordAuthor infinite elements -
dc.subject.keywordPlus P-VERSION -
dc.subject.keywordPlus INFINITE ELEMENTS -
dc.subject.keywordPlus ARTIFICIAL BOUNDARY -
dc.subject.keywordPlus EQUATIONS -
dc.subject.keywordPlus APPROXIMATION -
dc.subject.keywordPlus SINGULARITIES -

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