Mathematical analysis of EEP method for one-dimensional finite element postprocessing  

作　　者：赵庆华 周叔子 朱起定 

机构地区：[1]College of Mathematics and Economatics,Hunan University,Changsha 410082,P. R. China [2]College of Mathematics and Computer Science,Hunan Normal University,Changsha 410081,P. R. China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2007年第4期441-445,共5页应用数学和力学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Nos. 10571046, 10371038)

摘　　要：For a class of two-point boundary value problems, by virtue of onedimensional projection interpolation, it is proved that the nodal recovery derivative obtained by Yuan＇s element energy projection （EEP） method has the accuracy O（h^min{2k,k＋4}） The theoretical analysis coincides the reported numerical results.For a class of two-point boundary value problems, by virtue of onedimensional projection interpolation, it is proved that the nodal recovery derivative obtained by Yuan＇s element energy projection （EEP） method has the accuracy O（h^min{2k,k＋4}） The theoretical analysis coincides the reported numerical results.

关 键 词：superconvergence stress element energy projection method finite element two-point boundary value problems projection interpolation 

分 类 号：O241.82[理学—计算数学]