Vanishing thetanulls on curves with involutions
Algebraic Geometry
2012-06-26 v1
Abstract
The configuration of theta characteristics and vanishing thetanulls on a hyperelliptic curve is completely understood. We observe in this note that analogous results hold for the s-invariant theta characteristics on any curve C with an involution s . As a consequence we get examples of non hyperelliptic curves with a high number of vanishing thetanulls.
Keywords
Cite
@article{arxiv.1206.5411,
title = {Vanishing thetanulls on curves with involutions},
author = {Arnaud Beauville},
journal= {arXiv preprint arXiv:1206.5411},
year = {2012}
}