@article{twochannelfilterbanksonarbitrarygraphs,
  title = {Two Channel Filter Banks on Arbitrary Graphs with Positive Semi Definite Variation Operators},
  author = {Eduardo Pavez and Benjamin Girault and Antonio Ortega and Philip A. Chou},
  year = {2022},
  eprint = {2203.02858},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2203.02858v3},
}