A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION

doi:10.1016/S0252-9602(17)30024-3

数学物理学报(英文版) ›› 2017, Vol. 37 ›› Issue (3): 584-592.doi: 10.1016/S0252-9602(17)30024-3

A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION

石东洋¹, 廖歆², 王乐乐¹

1. School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, China;
2. Department of Mathematics and Physics, Zhengzhou University of Aeronautics, Zhengzhou 450046, China

收稿日期:2015-03-18 修回日期:2016-03-17 出版日期:2017-06-25 发布日期:2017-06-25
作者简介:Dongyang SHI,E-mail:shi dy@zzu.edu.cn;Xin LIAO,E-mail:woshiliaoxin@126.com;Lele WANG,E-mail:wanglesky2008@163.com
基金资助:
The research was supported by the National Natural Science Foundation of China (11271340,11101381).

A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION

Dongyang SHI¹, Xin LIAO², Lele WANG¹

1. School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, China;
2. Department of Mathematics and Physics, Zhengzhou University of Aeronautics, Zhengzhou 450046, China

Received:2015-03-18 Revised:2016-03-17 Online:2017-06-25 Published:2017-06-25
Supported by:
The research was supported by the National Natural Science Foundation of China (11271340,11101381).

摘要/Abstract

摘要： In this article, a nonconforming quadrilateral element (named modified quasiWilson element) is applied to solve the nonlinear schrödinger equation (NLSE). On the basis of a special character of this element, that is, its consistency error is of order O(h³) for broken H¹-norm on arbitrary quadrilateral meshes, which is two order higher than its interpolation error, the optimal order error estimate and superclose property are obtained. Moreover, the global superconvergence result is deduced with the help of interpolation postprocessing technique. Finally, some numerical results are provided to verify the theoretical analysis.

关键词: Nonlinear Schrödinger equation, modified quasi-Wilson element, supercloseness and superconvergence

Abstract: In this article, a nonconforming quadrilateral element (named modified quasiWilson element) is applied to solve the nonlinear schrödinger equation (NLSE). On the basis of a special character of this element, that is, its consistency error is of order O(h³) for broken H¹-norm on arbitrary quadrilateral meshes, which is two order higher than its interpolation error, the optimal order error estimate and superclose property are obtained. Moreover, the global superconvergence result is deduced with the help of interpolation postprocessing technique. Finally, some numerical results are provided to verify the theoretical analysis.

Key words: Nonlinear Schrödinger equation, modified quasi-Wilson element, supercloseness and superconvergence

石东洋, 廖歆, 王乐乐. A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION[J]. 数学物理学报(英文版), 2017, 37(3): 584-592.

Dongyang SHI, Xin LIAO, Lele WANG. A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION[J]. Acta mathematica scientia,Series B, 2017, 37(3): 584-592.

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A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION

A NONCONFORMING QUADRILATERAL FINITE ELEMENT APPROXIMATION TO NONLINEAR SCHRODINGER EQUATION

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