Back to Search
Start Over
The moduli of singular curves on K3 surfaces.
- Source :
-
Journal de Mathematiques Pures et Appliquees . Nov2015, Vol. 104 Issue 5, p882-920. 39p. - Publication Year :
- 2015
-
Abstract
- In this article we consider moduli properties of singular curves on K3 surfaces. Let B g denote the stack of primitively polarized K3 surfaces ( X , L ) of genus g and let T g , k n → B g be the stack parameterizing tuples [ ( f : C → X , L ) ] with f an unramified morphism which is birational onto its image, C a smooth curve of genus p ( g , k ) − n and f ⁎ C ∈ | k L | . We show that the forgetful morphism η : T g , k n → M p ( g , k ) − n is generically finite on at least one component, for all but finitely many values of p ( g , k ) − n . We further study the Brill–Noether theory of those curves parametrized by the image of η , and find a Wahl-type obstruction for a smooth curve with an unordered marking to have a nodal model on a K3 surface in such a way that the marking is the divisor over the nodes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00217824
- Volume :
- 104
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal de Mathematiques Pures et Appliquees
- Publication Type :
- Academic Journal
- Accession number :
- 110212700
- Full Text :
- https://doi.org/10.1016/j.matpur.2015.05.007