@article{concavifiabilityandconvergencenecessary,
  title = {Concavifiability and convergence: necessary and sufficient conditions for gradient descent analysis},
  author = {Thulasi Tholeti and Sheetal Kalyani},
  year = {2019},
  eprint = {1905.11620},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1905.11620v1},
}