@inproceedings{anefficientexactpgaalgorithmforconstant,
  title = {An efficient Exact-PGA algorithm for constant curvature manifolds},
  author = {Rudrasis Chakraborty and Dohyung Seo and Baba C. Vemuri},
  year = {2016},
  booktitle = {CVPR 2016 6},
  eprint = {1603.03984},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1603.03984v1},
}