Linear series on ribbons

Autores: Dawei Chen
Localización: Proceedings of the American Mathematical Society, ISSN 0002-9939, Vol. 138, Nº 11, 2010, págs. 3797-3805
Idioma: inglés
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Resumen
- A ribbon is a double structure on . The geometry of a ribbon is closely related to that of a smooth curve. In this paper we consider linear series on ribbons. Our main result is an explicit determinantal description for the locus of degree line bundles with at least -dimensional sections on a ribbon. We also discuss some results of Clifford and Brill-Noether type.