Numerical Investigations on the Resonance Errors of Multiscale Discontinuous Galerkin Methods for One-Dimensional Stationary Schrödinger Equation
Numerical Investigations on the Resonance Errors of Multiscale Discontinuous Galerkin Methods for One-Dimensional Stationary Schrödinger Equation
复制标题
一维平稳薛定谔方程多尺度间断伽辽金法共振误差的数值研究
DOI:
10.1007/s42967-022-00248-4
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发表时间:
2023
影响因子:
1.6
通讯作者:
Wang, Wei
中科院分区:
文献类型:
--
作者:
Dong, Bo;Wang, Wei
In this paper, numerical experiments are carried out to investigate the impact of penalty parameters in the numerical traces on the resonance errors of high-order multiscale discontinuous Galerkin (DG) methods (Dong et al. in J Sci Comput 66: 321–345, 2016; Dong and Wang in J Comput Appl Math 380: 1–11, 2020) for a one-dimensional stationary Schrödinger equation. Previous work showed that penalty parameters were required to be positive in error analysis, but the methods with zero penalty parameters worked fine in numerical simulations on coarse meshes. In this work, by performing extensive numerical experiments, we discover that zero penalty parameters lead to resonance errors in the multiscale DG methods, and taking positive penalty parameters can effectively reduce resonance errors and make the matrix in the global linear system have better condition numbers.
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影响因子:
2.5
作者:
Yifan Zhang;Wei Wang;J. Guzmán;Chi
通讯作者:
Chi
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
C. Negulescu
通讯作者:
C. Negulescu
影响因子:
2.4
作者:
Dong, Bo;Wang, Wei
通讯作者:
Wang, Wei
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
J. Aarnes;B. Heimsund
通讯作者:
B. Heimsund
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
C. Negulescu;N. Ben Abdallah;E. Polizzi;M. Mouis
通讯作者:
M. Mouis