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arXiv · 1609.08853

Optimal Error Estimates of Conservative Local Discontinuous Galerkin Method for Nonlinear Schr\"odinger Equation

Jialin Hong·Lihai Ji·Zhihui Liu
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Abstract

In this paper, we propose a conservative local discontinuous Galerkin method for one-dimensional nonlinear Schr\"odinger equation. By using special upwind-biased numerical fluxes, we establish the optimal rate of convergence $\mathcal O(h^{k+1})$, with polynomial of degree $k$ and grid size $h$. Meanwhile, we show that this method preserves the charge conservation law and thus we call it a conservative local discontinuous Galerkin method. Numerical experiments verify our theoretical result.

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Jialin Hong, Lihai Ji, Zhihui Liu. 2016-09-28. Optimal Error Estimates of Conservative Local Discontinuous Galerkin Method for Nonlinear Schr\"odinger Equation. https://doi.org/10.1016/j.apnum.2018.01.004

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