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Multigrid and adaptive algorithm for solving the nonlinear Schrödinger equation. (English) Zbl 0708.65111
An application of a multigrid and adaptive algorithm for solving the initial-boundary value problem $$iu_ t-(\partial /\partial x)A(x)(\partial u/\partial x)+2| u|^ 2u+F(x,t)u=G(x,t),\quad u\in {\mathbb{R}}^ m,$$ $$x_ L<x<x_ R,\quad u|_{x_ L}=u|_{x_ R}=0,\quad u|_{t=0}=u_ 0(x),$$ where A(x) is a real diagonal matrix, is considered. There are estimates for the solution of the difference scheme. Some numerical examples are presented and compared with corresponding results obtained by a traditional method. There is a discussion of the method and the numerical results.
Reviewer: L.P.Lebedev

##### MSC:
 65Z05 Applications to the sciences 65N55 Multigrid methods; domain decomposition for boundary value problems involving PDEs 65M06 Finite difference methods for initial value and initial-boundary value problems involving PDEs 35Q55 NLS equations (nonlinear Schrödinger equations)
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