{ "id": "1201.6246", "version": "v5", "published": "2012-01-30T15:12:34.000Z", "updated": "2013-07-22T09:18:28.000Z", "title": "Gonality of algebraic curves and graphs", "authors": [ "Lucia Caporaso" ], "comment": "Final version to appear in the Springer volume dedicated to Klaus Hulek on the occasion of his 60-th birthday", "categories": [ "math.AG", "math.CO" ], "abstract": "We study the interplay between the classical theory of linear series on curves, and the recent theory of linear series on graphs. We prove that every d-gonal (weighted) graph of Hurwitz type is the dual graph of a d-gonal curve. Conversely the dual graph of a d-gonal curve is equivalent to a d-gonal graph. We define d-gonal graphs by what we call harmonic indexed morphisms. Generalizations to higher dimensional linear series, and applications to tropical curves and hyperelliptic graphs are given.", "revisions": [ { "version": "v5", "updated": "2013-07-22T09:18:28.000Z" } ], "analyses": { "subjects": [ "14H10", "14H51", "14T05", "05C99" ], "keywords": [ "algebraic curves", "d-gonal curve", "dual graph", "higher dimensional linear series", "define d-gonal graphs" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1201.6246C" } } }