In this article we analyze the error of a semidiscrete scheme for the stochastic nonlinear Schrodinger equation with power nonlinearity. We consider supercritical or subcritical nonlinearity and the equation can be either focusing or defocusing. Allowing sufficient spatial regularity we prove that the numerical scheme has strong order $\frac 12$ in general and order 1 if the noise is additive. Furthermore, we also prove that the weak order is always 1.
Applied Mathematics and Optimization – Springer Journals
Published: Nov 1, 2006
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