@article{learninggraphfoundationmodelsonriemannia,
  title = {Learning Graph Foundation Models on Riemannian Graph-of-Graphs},
  author = {Haokun Liu and Zezhong Ding and Xike Xie},
  year = {2026},
  eprint = {2605.09993},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.09993},
}