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- W2889260401 abstract "In this work, a fourth-order in space and second-order in time compact scheme, a sixth-order in space and second-order in time compact scheme and two linearized compact schemes are proposed for the (1+1)-dimensional nonlinear Dirac equation. The iterative algorithm is used to compute the nonlinear algebraic system and the Thomas algorithm in the matrix form is adopted to enhance the computational efficiency. It is proved that all of the schemes are unconditionally stable in the linear sense. Numerical experiments are given to test the accuracy order of the presented schemes, record the error history for all of the schemes with respect to t, discuss the conservation laws of discrete charge and energy from the numerical point of view, study the stability of the solitary waves by adding a small random perturbation to the initial data, and simulate the collision of two and three solitary waves." @default.
- W2889260401 created "2018-09-07" @default.
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- W2889260401 date "2018-08-29" @default.
- W2889260401 modified "2023-09-30" @default.
- W2889260401 title "High-order compact methods for the nonlinear Dirac equation" @default.
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- W2889260401 doi "https://doi.org/10.1007/s40314-018-0705-4" @default.
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