FINITE VOLUME DISCRETIZATIONS FOR EIGENVALUE PROBLEMS WITH APPLICATIONS TO ELECTRONIC STRUCTURE CALCULATIONS

被引:18
|
作者
Dai, Xiaoying [1 ]
Gong, Xingao [2 ]
Yang, Zhang [1 ]
Zhang, Dier [2 ]
Zhou, Aihui [1 ]
机构
[1] Chinese Acad Sci, State Key Lab Sci & Engn Comp, Inst Computat Math & Sci Engn Comp, Acad Math & Syst Sci, Beijing 100190, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
基金
国家高技术研究发展计划(863计划); 美国国家科学基金会;
关键词
eigenvalue; electronic structure; finite element; finite volume; high order; symmetric; DENSITY-FUNCTIONAL THEORY; TOTAL-ENERGY CALCULATIONS; GROUND-STATE SOLUTION; ELEMENT-METHOD; DIMENSIONAL APPROXIMATIONS; SCHRODINGER-OPERATORS; ALGORITHMS; COMPUTATIONS; CONVERGENCE; EQUATIONS;
D O I
10.1137/090757046
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
To introduce the finite volume method to electronic structure calculations, we study a symmetric finite volume scheme for a class of linear eigenvalue problems and present a priori error analysis of the finite volume eigenpair approximations. Based on finite volume-finite element coupled discretizations, in particular, we design several higher order approximate schemes. We also demonstrate a series of numerical experiments in electronic structure calculations that illustrate the effectiveness of our finite volume discretization approaches.
引用
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页码:208 / 240
页数:33
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