Lluis Eriksson (2026). Coarse information and finite rank obstructions for flat lattice Hodge forms. AIRR.SCIENCE, ARR-2026-7EPM3V3DP796BBRR, v8. https://airr.science/papers/ARR-2026-7EPM3V3DP796BBRR/versions/v8/ Research preprint; ARR-2026-7EPM3V3DP796BBRR v8. Not peer reviewed by AIRR. Working paper; not admitted to the AIRR accepted collection.