An efficient finite element method and error analysis for eigenvalue problem of Schrödinger equation with an inverse square potential on spherical domain
An efficient finite element method and error analysis for eigenvalue problem of Schrödinger equation with an inverse square potential on spherical domain
复制标题
球域反平方势薛定谔方程特征值问题的高效有限元方法及误差分析
DOI:
10.1186/s13662-020-03034-9
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发表时间:
2020-10
影响因子:
4.1
通讯作者:
Jun Zhang
中科院分区:
文献类型:
--
作者:
Yubing Sui;Donghao Zhang;Junying Cao;Jun Zhang
AbstractWe provide an effective finite element method to solve the Schrödinger eigenvalue problem with an inverse potential on a spherical domain. To overcome the difficulties caused by the singularities of coefficients, we introduce spherical coordinate transformation and transfer the singularities from the interior of the domain to its boundary. Then by using orthogonal properties of spherical harmonic functions and variable separation technique we transform the original problem into a series of one-dimensional eigenvalue problems. We further introduce some suitable Sobolev spaces and derive the weak form and an efficient discrete scheme. Combining with the spectral theory of Babuška and Osborn for self-adjoint positive definite eigenvalue problems, we obtain error estimates of approximation eigenvalues and eigenvectors. Finally, we provide some numerical examples to show the efficiency and accuracy of the algorithm.
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DOI:
10.1007/bfb0067087
发表时间:
1975
期刊:
--
影响因子:
--
作者:
H. Kalf;U. Schmincke;J. Walter;R. Wüst
通讯作者:
H. Kalf;U. Schmincke;J. Walter;R. Wüst
影响因子:
2
作者:
G. Reddien
通讯作者:
G. Reddien
影响因子:
2.9
作者:
Mostafa M. A. Khater;J. F. Alzaidi;R. Attia;M. Inc.;D. Lu
通讯作者:
Mostafa M. A. Khater;J. F. Alzaidi;R. Attia;M. Inc.;D. Lu
影响因子:
2.4
作者:
D. Cao;P. Han
通讯作者:
D. Cao;P. Han
影响因子:
2.9
作者:
H. M. Srivastava;H. Günerhan;B. Ghanbari
通讯作者:
H. M. Srivastava;H. Günerhan;B. Ghanbari