{ "id": "1603.08230", "version": "v1", "published": "2016-03-27T15:42:23.000Z", "updated": "2016-03-27T15:42:23.000Z", "title": "The normal order of of the divisor-counting function for invariants of rank 2 Drinfeld modules", "authors": [ "Abel Castillo" ], "comment": "20 pages", "categories": [ "math.NT" ], "abstract": "We compute the first and second moments of the divisor-counting function for the Euler-Poincar\\'{e} characteristic and the trace of Frobenius for the reductions modulo $p$ of a rank 2 Drinfeld module with nontrivial endomorphism ring, as the prime $p$ varies over the primes of ordinary reduction of the Drinfeld module. From these moments we derive the normal order of the number of prime divisors of these invariants.", "revisions": [ { "version": "v1", "updated": "2016-03-27T15:42:23.000Z" } ], "analyses": { "keywords": [ "drinfeld module", "normal order", "divisor-counting function", "invariants", "ordinary reduction" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160308230C" } } }