@article{gaussiankernelsonnonsimplyconnected,
  title = {Gaussian kernels on non-simply-connected closed Riemannian manifolds are never positive definite},
  author = {Siran Li},
  year = {2023},
  eprint = {2303.06558},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2303.06558v1},
}