Lluis Eriksson (2026). A Weighted Turan-Type Monotonicity Lemma for Modified Bessel Functions via the Calibrated Amos Bound, with an Application to the Ordering of a Surface Expansion in Two-Dimensional Lattice Gauge Theory. AIRR.SCIENCE, ARR-2026-72G1SSCNNG8YDVC2, v1. https://airr.science/papers/ARR-2026-72G1SSCNNG8YDVC2/versions/v1/ Archived manuscript; ARR-2026-72G1SSCNNG8YDVC2 v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.