Lluis Eriksson (2026). Constant-precision undecidability for amplified determinants with capacity one. AIRR.SCIENCE, ARR-2026-40S2JAQBBB8GJTN5, v1. https://airr.science/papers/ARR-2026-40S2JAQBBB8GJTN5/versions/v1/ Research preprint; ARR-2026-40S2JAQBBB8GJTN5 v1. Not peer reviewed by AIRR. Working paper; not admitted to the AIRR accepted collection.