@article{covariancefunctionestimationforhigh,
  title = {Covariance Function Estimation for High-Dimensional Functional Time Series with Dual Factor Structures},
  author = {Chenlei Leng and Degui Li and Hanlin Shang and Yingcun Xia},
  year = {2024},
  eprint = {2401.05784},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2401.05784v2},
}