Proves optimal order-1 and order-2 convergence for an exponential integrator on NLS and corrected Lie splitting on NLW by applying Strichartz and null-form estimates in continuous time.
Low regularity exponential-type integrators for semilinear Schrödinger equations
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Improved error estimates for low-regularity integrators using space-time bounds
Proves optimal order-1 and order-2 convergence for an exponential integrator on NLS and corrected Lie splitting on NLW by applying Strichartz and null-form estimates in continuous time.