Error bounds for Physics Informed Neural Networks in Nonlinear Schr\"odinger equations placed on unbounded domains
<|reference_start|>Error bounds for Physics Informed Neural Networks in Nonlinear Schr\"odinger equations placed on unbounded domains: We consider the subcritical nonlinear Schr\"odinger (NLS) in dimension one posed on the unbounded real line. Several previous works have considered the deep neural network approximation of NLS solutions from the numerical and theoretical point of view in the case of bounded domains. In this paper, we introduce a new PINNs method to treat the case of unbounded domains and provide rigorous bounds on the associated approximation error in terms of the energy and Strichartz norms, provided a reasonable integration scheme is available. Applications to traveling waves, breathers and solitons, as well as numerical experiments confirming the validity of the approximation are also provided as well.<|reference_end|>
@article{alejo2024error,
    title={Error bounds for Physics Informed Neural Networks in Nonlinear
  Schr\"odinger equations placed on unbounded domains},
    author={Miguel 'A. Alejo, Lucrezia Cossetti, Luca Fanelli, Claudio Mu~noz
  and Nicol'as Valenzuela},
    journal={arXiv preprint arXiv:2409.17938},
    year={2024},
    archivePrefix={arXiv},
    eprint={2409.17938},
    primaryClass={math.AP cs.NA math.NA}
}