{ "id": "1703.03991", "version": "v1", "published": "2017-03-11T16:16:03.000Z", "updated": "2017-03-11T16:16:03.000Z", "title": "About Chow groups of certain hyperkähler varieties with non-symplectic automorphisms", "authors": [ "Robert Laterveer" ], "comment": "16 pages, to appear in Vietnam J. Math., comments welcome", "categories": [ "math.AG" ], "abstract": "Let $X$ be a hyperk\\\"ahler variety, and let $G$ be a group of finite order non-symplectic automorphisms of $X$. Beauville's conjectural splitting property predicts that each Chow group of $X$ should split in a finite number of pieces. The Bloch-Beilinson conjectures predict how $G$ should act on these pieces of the Chow groups: certain pieces should be invariant under $G$, while certain other pieces should not contain any non-trivial $G$-invariant cycle. We can prove this for two pieces of the Chow groups when $X$ is the Hilbert scheme of a $K3$ surface and $G$ consists of natural automorphisms. This has consequences for the Chow ring of the quotient $X/G$.", "revisions": [ { "version": "v1", "updated": "2017-03-11T16:16:03.000Z" } ], "analyses": { "subjects": [ "14C15", "14C25", "14C30" ], "keywords": [ "chow group", "hyperkähler varieties", "finite order non-symplectic automorphisms", "beauvilles conjectural splitting property predicts", "bloch-beilinson conjectures predict" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }