@article{SaHeHi19,
  author = {{Sassen}, Josua and {Heeren}, Behrend and {Hildebrandt}, Klaus and {Rumpf}, Martin},
  title = {Geometric optimization using nonlinear rotation-invariant coordinates},
  journal = {Computer Aided Geometric Design},
  volume = {77},
  pages={101829},
  doi = {10.1016/j.cagd.2020.101829},
  year = {2020},
  archiveprefix = {arXiv},
  arxiv = {https://arxiv.org/abs/1908.11728},
  eprint = {1908.11728},
  keywords = {Mathematics - Numerical Analysis, Computer Science - Graphics, 65D18, 65K10, 65D17, 74S30},
  primaryclass = {math.NA},
  url = {https://arxiv.org/abs/1908.11728},
}