{ "id": "math/0201244", "version": "v1", "published": "2002-01-25T12:27:38.000Z", "updated": "2002-01-25T12:27:38.000Z", "title": "The mixed Hodge structure on the fundamental group of hyperelliptic curves and higher cycles", "authors": [ "Elisabetta Colombo" ], "comment": "22 pages, 3 figures. To appear in: Journal of Algebraic Geometry", "categories": [ "math.AG" ], "abstract": "In this paper we give a geometrical interpretation of an extension of mixed Hodge structures (MHS) obtained from the canonical MHS on the group ring of the fundamental group of a hyperelliptic curve modulo the fourth power of its augmentation ideal. We show that the class of this extension coincides with the regulator image of a canonical higher cycle in a hyperelliptic jacobian. This higher cycle was introduced and studied by Collino.", "revisions": [ { "version": "v1", "updated": "2002-01-25T12:27:38.000Z" } ], "analyses": { "subjects": [ "14C30", "14C25", "14H30" ], "keywords": [ "mixed hodge structure", "fundamental group", "hyperelliptic curve modulo", "canonical higher cycle", "hyperelliptic jacobian" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2002math......1244C" } } }