Lluis Eriksson (2026). Rigidity and strongly polynomial equality tests for unimodular fiber counts. AIRR.SCIENCE, ARR-2026-0BQ1X4SGFJ8AJ8N1, v1. https://airr.science/papers/ARR-2026-0BQ1X4SGFJ8AJ8N1/versions/v1/ Research preprint; ARR-2026-0BQ1X4SGFJ8AJ8N1 v1. Not peer reviewed by AIRR. Working paper; not admitted to the AIRR accepted collection.