期刊
NUMERICAL ALGORITHMS
卷 79, 期 1, 页码 337-356出版社
SPRINGER
DOI: 10.1007/s11075-017-0439-1
关键词
Galerkin-Legendre spectral method; Crank-Nicolson difference method; Nonlinear space fractional Schrodinger equation; Convergence analysis
资金
- National Natural Science Foundation of China [11472161, 11771254, 11672163]
- Natural Science Foundation of Shandong Province [ZR2015AM011, ZR2017MA030]
In the paper, we first propose a Crank-Nicolson Galerkin-Legendre (CN-GL) spectral scheme for the one-dimensional nonlinear space fractional Schrodinger equation. Convergence with spectral accuracy is proved for the spectral approximation. Further, a Crank-Nicolson ADI Galerkin-Legendre spectral method for the two-dimensional nonlinear space fractional Schrodinger equation is developed. The proposed schemes are shown to be efficient with second-order accuracy in time and spectral accuracy in space which are higher than some recently studied methods. Moreover, some numerical results are demonstrated to justify the theoretical analysis.
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