On the convergence of a linear two-step finite element method for the nonlinear Schrödinger equation
Georgios E. Zouraris (2010)
ESAIM: Mathematical Modelling and Numerical Analysis
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We discretize the nonlinear Schrödinger equation, with Dirichlet boundary conditions, by a linearly implicit two-step finite element method which conserves the norm. We prove optimal order error estimates in the and norms, under mild mesh conditions for two and three space dimensions.