@article{improvedconvergenceratesfornonconvex,
  title = {Faster Non-Convex Federated Learning via Global and Local Momentum},
  author = {Rudrajit Das and Anish Acharya and Abolfazl Hashemi and Sujay Sanghavi and Inderjit S. Dhillon and Ufuk Topcu},
  year = {2020},
  eprint = {2012.04061},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2012.04061v4},
}