Classical O(N) nonlinear sigma model on the half line: a study on consistent Hamiltonian description

@article{He2003ClassicalON,
  title={Classical O(N) nonlinear sigma model on the half line: a study on consistent Hamiltonian description},
  author={Wenli He and Liu Zhao},
  journal={Physics Letters B},
  year={2003},
  volume={570},
  pages={251-259}
}

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