摘要
在非正则性条件下 ,研究了窄四边形类Wilson非协调元。通过参考元和双线性变换 ,构造出了任意窄四边形上的类Wilson元。利用窄四边形双线性元的插值定理和有关技巧 ,得到了窄四边形上类Wilson元的插值误差 ;同时 ,具体给出了各估计式中的常数。
In the case of non\|regularity conditions,the quasi\|Wilson nonconforming element for narrow quadrilateral is studied.By reference element and bilinear transformation,the quasi\|Wilson element for arbitrary narrow quadrilateral is presented.Using the interpolation theorems for narrow quadrilateral bilinear elements and concerned methods,the interpolation errors of quasi\|Wilson element for narrow quadrilateral are obtained.Meanwhile,the constants of various estimations are given.
出处
《测绘学院学报》
2000年第3期227-231,共5页
Journal of Institute of Surveying and Mapping
基金
河南省自然科学基金资助项目!( 9940 5 2 60 0 )
关键词
类WILSON元
插值误差
窄四边形
quasi\|Wilson element
interpolation errors
narrow quadrilateral
