Parity of the spin structure defined by a quadratic differential
Geometric Topology
2014-11-11 v2 Dynamical Systems
Abstract
According to the work of Kontsevich-Zorich, the invariant that classifies non-hyperelliptic connected components of the moduli spaces of Abelian differentials with prescribed singularities,is the parity of the spin structure. We show that for the moduli space of quadratic differentials, the spin structure is constant on every stratum where it is defined. In particular this disproves the conjecture that it classifies the non-hyperelliptic connected components of the strata of quadratic differentials with prescribed singularities. An explicit formula for the parity of the spin structure is given.
Keywords
Cite
@article{arxiv.math/0210116,
title = {Parity of the spin structure defined by a quadratic differential},
author = {Erwan Lanneau},
journal= {arXiv preprint arXiv:math/0210116},
year = {2014}
}
Comments
Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol8/paper12.abs.html