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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.
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页码:208 / 240
页数:33
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