@article{fast1approximationofthelownerextremal,
  title = {Fast $(1+ε)$-approximation of the Löwner extremal matrices of high-dimensional symmetric matrices},
  author = {Frank Nielsen and Richard Nock},
  year = {2016},
  eprint = {1604.01592},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1604.01592v1},
}