{ "id": "2309.13730", "version": "v1", "published": "2023-09-24T19:20:46.000Z", "updated": "2023-09-24T19:20:46.000Z", "title": "Families of automorphisms of abelian varieties", "authors": [ "Charles Favre", "Alexandra Kuznetsova" ], "comment": "34 pages, 2 tables", "categories": [ "math.AG", "math.DS" ], "abstract": "We consider some algebraic aspects of the dynamics of an automorphism on a family of polarized abelian varieties parameterized by the complex unit disk. When the action on the cohomology of the generic fiber has no cyclotomic factor, we prove that such a map can be made regular only if the family of abelian varieties does not degenerate. As a contrast, we show that families of translations are always regularizable. We further describe the closure of the orbits of such maps, inspired by results of Cantat and Amerik-Verbitsky.", "revisions": [ { "version": "v1", "updated": "2023-09-24T19:20:46.000Z" } ], "analyses": { "subjects": [ "14J50", "14K22", "32H50" ], "keywords": [ "automorphism", "complex unit disk", "algebraic aspects", "polarized abelian varieties", "generic fiber" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable" } } }