Superconvergence of finite element method for parabolic problem

We study superconvergence of a semi-discrete finite element scheme for parabolic problem. Our new scheme is based on introducing different approximation of initial condition. First, we give a superconvergence of uh−Rhu, then use a postprocessing to improve the accuracy to higher order.

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Bibliographic Details
Main Authors: Do Y. Kwak, Sungyun Lee, Qian Li
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171200002519
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author Do Y. Kwak
Sungyun Lee
Qian Li
author_facet Do Y. Kwak
Sungyun Lee
Qian Li
author_sort Do Y. Kwak
collection DOAJ
description We study superconvergence of a semi-discrete finite element scheme for parabolic problem. Our new scheme is based on introducing different approximation of initial condition. First, we give a superconvergence of uh−Rhu, then use a postprocessing to improve the accuracy to higher order.
format Article
id doaj-art-9dd60e029ab84e1084263d498cd3d471
institution Kabale University
issn 0161-1712
1687-0425
language English
publishDate 2000-01-01
publisher Wiley
record_format Article
series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-9dd60e029ab84e1084263d498cd3d4712025-02-03T06:00:46ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252000-01-0123856757810.1155/S0161171200002519Superconvergence of finite element method for parabolic problemDo Y. Kwak0Sungyun Lee1Qian Li2Department of Mathematics, KAIST, Taejon 305–701, KoreaDepartment of Mathematics, KAIST, Taejon 305–701, KoreaDepartment of Mathematics, Shandong Normal University, Shandong, Jinan 250014, ChinaWe study superconvergence of a semi-discrete finite element scheme for parabolic problem. Our new scheme is based on introducing different approximation of initial condition. First, we give a superconvergence of uh−Rhu, then use a postprocessing to improve the accuracy to higher order.http://dx.doi.org/10.1155/S0161171200002519Superconvergenceparabolic problempostprocessing.
spellingShingle Do Y. Kwak
Sungyun Lee
Qian Li
Superconvergence of finite element method for parabolic problem
International Journal of Mathematics and Mathematical Sciences
Superconvergence
parabolic problem
postprocessing.
title Superconvergence of finite element method for parabolic problem
title_full Superconvergence of finite element method for parabolic problem
title_fullStr Superconvergence of finite element method for parabolic problem
title_full_unstemmed Superconvergence of finite element method for parabolic problem
title_short Superconvergence of finite element method for parabolic problem
title_sort superconvergence of finite element method for parabolic problem
topic Superconvergence
parabolic problem
postprocessing.
url http://dx.doi.org/10.1155/S0161171200002519
work_keys_str_mv AT doykwak superconvergenceoffiniteelementmethodforparabolicproblem
AT sungyunlee superconvergenceoffiniteelementmethodforparabolicproblem
AT qianli superconvergenceoffiniteelementmethodforparabolicproblem