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Structure preserving fourth-order difference scheme for the nonlinear spatial fractional Schrödinger equation in two dimensions

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  • Ding, Hengfei
  • Tian, Junhong

Abstract

In this paper, we focus on develop high-order and structure-preserving numerical algorithm for the two-dimensional nonlinear space fractional Schrödinger equations. By constructing a new generating function, we obtain a fourth-order numerical differential formula and use it to approximate the spatial Riesz derivative, while the Crank–Nicolson method is applied for the time derivative. Based on the energy method, the conservation, solvability and convergence of the numerical algorithm are proved. Finally, some numerical examples are used to verify the correctness of the theoretical analysis and the validity of the numerical algorithm.

Suggested Citation

  • Ding, Hengfei & Tian, Junhong, 2023. "Structure preserving fourth-order difference scheme for the nonlinear spatial fractional Schrödinger equation in two dimensions," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 205(C), pages 1-18.
    • Handle: RePEc:eee:matcom:v:205:y:2023:i:c:p:1-18
    DOI: 10.1016/j.matcom.2022.09.021
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    References listed on IDEAS

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    1. Wang, Dongling & Xiao, Aiguo & Yang, Wei, 2015. "Maximum-norm error analysis of a difference scheme for the space fractional CNLS," Applied Mathematics and Computation, Elsevier, vol. 257(C), pages 241-251.
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