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dc.contributor.authorHeimsund, Bjorn-Oveen
dc.contributor.authorTai, Xue Chengen
dc.contributor.authorWang, Junpingen
dc.identifier.citationHeimsund, B. O., Tai, X. C., & Wang, J. (2002). Superconvergence for the gradient of finite element approximations by L2-projections. SIAM Journal on Numerical Analysis, 40(4), 1263-1280.en
dc.description.abstractA gradient recovery technique is proposed and analyzed for finite element solutions which provides new gradient approximations with high order of accuracy. The recovery technique is based on the method of least-squares surface fitting in a finite-dimensional space corresponding to a coarse mesh. It is proved that the recovered gradient has a high order of superconvergence for appropriately chosen surface fitting spaces. The recovery technique is robust, efficient, and applicable to a wide class of problems such as the Stokes and elasticity equations.en
dc.format.extent18 p.en
dc.relation.ispartofseriesSIAM Journal on Numerical Analysis.en
dc.rightsSIAM Journal on Numerical Analysis © copyright 2002 Siam Society for Industrial and Applied Mathematics. The journal's website is located at
dc.subjectDRNTU::Science::Mathematics::Applied mathematics::Numerical analysisen
dc.titleSuperconvergence for the gradient of finite element approximations by L2-projectionsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionPublished versionen
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