@article{hu2022when,
title={When Do Extended Physics-Informed Neural Networks (XPINNs) Improve Generalization?},
author={Hu, Zheyuan and Jagtap, Ameya D and Karniadakis, George Em and Kawaguchi, Kenji},
journal={SIAM Journal on Scientific Computing},
volume={44},
pages={A3158A3182},
year={2022},
}