作者
Margarida Melo, Filippo Viviani
发表日期
2012/6
期刊
Mathematische Nachrichten
卷号
285
期号
8‐9
页码范围
997-1031
出版商
WILEY‐VCH Verlag
简介
We study Esteves's fine compactified Jacobians for nodal curves. We give a proof of the fact that, for a one‐parameter regular local smoothing of a nodal curve X, the relative smooth locus of a relative fine compactified Jacobian is isomorphic to the Néron model of the Jacobian of the general fiber, and thus it provides a modular compactification of it. We show that each fine compactified Jacobian of X admits a stratification in terms of certain fine compactified Jacobians of partial normalizations of X and, moreover, that it can be realized as a quotient of the smooth locus of a suitable fine compactified Jacobian of the total blowup of X. Finally, we determine when a fine compactified Jacobian is isomorphic to the corresponding Oda‐Seshadri's coarse compactified Jacobian.
引用总数
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学术搜索中的文章
M Melo, F Viviani - Mathematische Nachrichten, 2012