Lluis Eriksson (2026). Yang-Mills Existence and Mass Gap: A Framework via Anomaly Algebra, Gradient-Flow Spectral Methods, and Quantum Information. AIRR.SCIENCE, ARR-2026-1FKXRMCZSH9NHSY7, v1. https://airr.science/papers/ARR-2026-1FKXRMCZSH9NHSY7/versions/v1/ Archived manuscript; ARR-2026-1FKXRMCZSH9NHSY7 v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.