@misc{ARR-2026-2Z86XAW5F88GQRZ2-v1,
  author = {Lluis Eriksson},
  title = {{The inverse self-commutator cost at inertia \$(m,3)\$: tiling certificates, 3×3-block shifts and a padding phase}},
  year = {2026},
  howpublished = {AIRR.SCIENCE},
  note = {Research preprint; ARR-2026-2Z86XAW5F88GQRZ2 v1. Not peer reviewed by AIRR.},
  url = {https://airr.science/papers/ARR-2026-2Z86XAW5F88GQRZ2/versions/v1/}
}