@article{constructingfastapproximateeigenspaces,
  title = {Constructing fast approximate eigenspaces with application to the fast graph Fourier transforms},
  author = {Cristian Rusu and Lorenzo Rosasco},
  year = {2020},
  eprint = {2002.09723},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2002.09723v3},
}