The adaptive finite element method based on multi-scale discretizations for eigenvalue problems

Authors:
Hao Li;Yidu Yang
Affiliations:
-;-
Venue:
Computers & Mathematics with Applications
Year:
2013

Citing 13
Cited 0

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Abstract

In this paper, adaptive finite element methods for differential operator eigenvalue problems are discussed. For multi-scale discretization schemes based on Rayleigh quotient iteration (see Scheme 3 in [Y. Yang, H. Bi, A two-grid discretization scheme based on shifted-inverse power method, SIAM J. Numer. Anal. 49 (2011) 1602-1624]), a reliable and efficient a posteriori error indicator is given, in addition, a new adaptive algorithm based on the multi-scale discretizations is proposed, and we apply the algorithm to the Schrodinger equation for hydrogen atoms. The algorithm is performed under the package of Chen, and satisfactory numerical results are obtained.