@article{exponentialconvergenceofgradientmethods,
  title = {Exponential Convergence of Gradient Methods in Concave Network Zero-sum Games},
  author = {Amit Kadan and Hu Fu},
  year = {2020},
  eprint = {2007.05477},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.05477v1},
}