@article{thedecisiongeometryofcovarianceestimatio,
  title = {The Decision Geometry of Covariance Estimation for the Global Minimum-Variance Portfolio under Heavy Tails},
  author = {Xavier Fonseca},
  year = {2026},
  eprint = {2606.27462},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.27462},
}