12. meromorphic trace
Surface-level trace of meromorphic functions/forms along a degree-d map and the argument principle on X (zeros = poles for div f = 0 log-derivative traces).
5 modules, 5,837 lines, under Jacobians/MeromorphicTrace/.
References: Forster §10 · Forster §§4 · Forster §4.22 · Miranda Lemma 3.2.