Moduli of roots of line bundles on curves
Algebraic Geometry
2007-05-23 v2
Abstract
We treat the problem of completing the moduli space for roots of line bundles on curves. Special attention is devoted to higher spin curves within the universal Picard scheme. Two new different constructions, both using line bundles on nodal curves as boundary points, are carried out and compared with pre-existing ones.
Keywords
Cite
@article{arxiv.math/0404078,
title = {Moduli of roots of line bundles on curves},
author = {Lucia Caporaso and Cinzia Casagrande and Maurizio Cornalba},
journal= {arXiv preprint arXiv:math/0404078},
year = {2007}
}
Comments
Final version, added references. To appear in Trans. Amer. Math. Soc