On a global superconvergence of the gradient of linear triangular elements
| dc.contributor.author | Křižek, Michal | |
| dc.contributor.author | Neittaanmäki, Pekka | |
| dc.date.accessioned | 2019-02-20T13:02:43Z | |
| dc.date.available | 2019-02-20T13:02:43Z | |
| dc.date.issued | 1987 | fi |
| dc.identifier.citation | Křižek, M., Neittaanmäki, P. (1987). On a global superconvergence of the gradient of linear triangular elements. <em>Journal of Computational and Applied Mathematics</em>, 18 (2), 221-233. <a href="https://doi.org/10.1016/0377-0427(87)90018-5">doi:10.1016/0377-0427(87)90018-5</a> | |
| dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/62902 | |
| dc.description.abstract | We study a simple superconvergent scheme which recovers the gradient when solving a second-order elliptic problem in the plane by the usual linear elements. The recovered gradient globally approximates the true gradient even by one order of accuracy higher in the L2-norm than the piecewise constant gradient of the Ritz—Galerkin solution. A superconvergent approximation to the boundary flux is presented as well. | fi |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | eng | |
| dc.publisher | North-Holland | |
| dc.relation.ispartofseries | Journal of Computational and Applied Mathematics | |
| dc.rights | In Copyright | |
| dc.subject.other | global superconvergence for the gradient | fi |
| dc.subject.other | post-processing of the Ritz—Galerkin scheme | fi |
| dc.subject.other | error estimates | fi |
| dc.subject.other | boundary flux | fi |
| dc.title | On a global superconvergence of the gradient of linear triangular elements | fi |
| dc.type | article | |
| dc.identifier.urn | URN:NBN:fi:jyu-201902201597 | |
| dc.contributor.laitos | fi | |
| dc.contributor.laitos | en | |
| dc.contributor.oppiaine | ||
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
| dc.description.version | ||
| eprint.status | ||
| dc.description.reviewstatus | peerReviewed | |
| dc.format.pagerange | 221-233 | |
| dc.relation.issn | 0377-0427 | |
| dc.relation.numberinseries | 2 | |
| dc.relation.volume | 18 | |
| dc.type.version | publishedVersion | |
| dc.rights.copyright | © the Authors & North-Holland | |
| dc.rights.accesslevel | openAccess | fi |
| dc.format.content | fulltext | |
| dc.rights.url | http://rightsstatements.org/page/InC/1.0/?language=en | |
| dc.relation.doi | 10.1016/0377-0427(87)90018-5 |
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