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16 February 2025
 
  » arxiv » 1605.0429

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Adaptive splitting methods for nonlinear Schr"{o}dinger equations in the semiclassical regime
Winfried Auzinger ; Thomas Kassebacher ; Othmar Koch ; Mechthild Thalhammer ;
Date 2 May 2016
AbstractThe error behavior of exponential operator splitting methods for nonlinear Schr{"o}dinger equations in the semiclassical regime is studied. For the Lie and Strang splitting methods, the exact form of the local error is determined and the dependence on the semiclassical parameter is identified. This is enabled within a defect-based framework which also suggests asymptotically correct a~posteriori local error estimators as the basis for adaptive time stepsize selection. Numerical examples substantiate and complement the theoretical investigations.
Source arXiv, 1605.0429
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