Some remarks on invariants

@misc{cederwall2025someremarksinvariants,
      title={Some remarks on invariants},
      author={Martin Cederwall and Jessica Hutomo and Sergei M. Kuzenko and Kurt Lechner and Dmitri P. Sorokin},
      year={2025},
      eprint={2509.14350},
      archivePrefix={arXiv},
      primaryClass={hep-th},
      url={https://arxiv.org/abs/2509.14350},
}