@misc{Palcoux2026LowRankGrothendieck,
  author       = {Palcoux, S{\'e}bastien},
  title        = {Low-rank {Grothendieck} rings: an {AI}-assisted
                  classification project, constructions, and open problems},
  year         = {2026},
  howpublished = {Hexagon preprint, hexagon:2610.00300},
  url          = {https://hexagonmath.org/2610.00300}
}