FINITE ELEMENT ERROR EXPANSION FOR NONUNIFORM QUADRILATERAL MESHES

被引：0
|
作者：
林群
机构：
[1] China
[2] Institute of Systems Science
[3] Beijing
[4] Academia Sinica
来源：
Journal of Systems Science & Complexity | 1989年 / 03期
关键词：
Finite elements; nonuniform quadrilateral mesh; error expansion; a posterior error estimate; Richardson extrapolation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An error expansion for isoparametric bilinear finite element approximation isestablished with some kind of nonuniform quadrilateral mesh constructed in the followingway:We first decompose the considered polygonal domain into several fixed convex macro-quadrilaterals and then link up some equi-proportionate points of the opposite edges in eachmacro-quadrilateral and form a quadrilateral mesh which may not be uniform and so isuseful in the adaptive refinement.
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页码：275 / 282
页数：8
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