An index theory for asymptotic motions under singular potentials

@article{Barutello2017AnIT,
  title={An index theory for asymptotic motions under singular potentials},
  author={Vivina L. Barutello and Xijun Hu and Alessandro Portaluri and Susanna Terracini},
  journal={arXiv: Dynamical Systems},
  year={2017}
}

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