Mathematics – Algebraic Geometry
Scientific paper
2004-04-05
Mathematics
Algebraic Geometry
Final version, added references. To appear in Trans. Amer. Math. Soc
Scientific paper
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.
Caporaso Lucia
Casagrande Cinzia
Cornalba Maurizio
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