TY - JOUR T1 - A Two-Grid Finite-Element Method for the Nonlinear Schrödinger Equation AU - Jin , Jicheng AU - Wei , Ning AU - Zhang , Hongmei JO - Journal of Computational Mathematics VL - 2 SP - 146 EP - 157 PY - 2015 DA - 2015/04 SN - 33 DO - http://doi.org/10.4208/jcm.1409-m4323 UR - https://global-sci.org/intro/article_detail/jcm/9833.html KW - Nonlinear Schrödinger equation, Finite element method, Two-grid AB -

In this paper, some two-grid finite element schemes are constructed for solving the nonlinear Schrödinger equation. With these schemes, the solution of the original problem is reduced to the solution of the same problem on a much coarser grid together with the solutions of two linear problems on a fine grid. We have shown, both theoretically and numerically, that our schemes are efficient and achieve asymptotically optimal accuracy.