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One-stage exponential integrators for nonlinear Schrödinger equations over long times

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Abstract

Near-conservation over long times of the actions, of the energy, of the mass and of the momentum along the numerical solution of the cubic Schrödinger equation with small initial data is shown. Spectral discretization in space and one-stage exponential integrators in time are used. The proofs use modulated Fourier expansions.

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Acknowledgements

We greatly appreciate the referees’ comments on an earlier version. We would like to thank Christian Lubich for interesting discussions.

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Correspondence to David Cohen.

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Communicated by Mechthild Thalhammer.

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Cohen, D., Gauckler, L. One-stage exponential integrators for nonlinear Schrödinger equations over long times. Bit Numer Math 52, 877–903 (2012). https://doi.org/10.1007/s10543-012-0385-1

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  • DOI: https://doi.org/10.1007/s10543-012-0385-1

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