Simpson Jacobians of reducible curves

dc.creatorLopez, Ana Cristina
dc.date2004-10-18
dc.date.accessioned2026-07-07T05:13:22Z
dc.date.available2026-07-07T05:13:22Z
dc.descriptionFor any projective curve $X$ let $\bar{M}^d(X)$ be the Simpson moduli space of pure dimension one rank 1 degree $d$ sheaves that are semistable with respect to a fixed polarization $H$ on $X$. When $X$ is a reduced curve the connected component of $\bar{M}^d(X)$ that contains semistable line bundles can be considered as the compactified Jacobian of $X$. In this paper we give explicitly the structure of this compactified Simpson Jacobian for the following projective curves: tree-like curves and all reduced and reducible curves that can appear as Kodaira singular fibers of an elliptic fibration, that is, the fibers of types $III$, $IV$ and $I_N$ with $N\geq 2$
dc.descriptionLatex file with 13 figures. Final version to appear in J. Reine. Angew. Math
dc.identifierhttps://arxiv.org/abs/math/0410393
dc.identifierhttp://arxiv.org/abs/math/0410393
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/72920
dc.subjectAlgebraic Geometry
dc.subject14H60, 14F05, 14D20, 14D22
dc.titleSimpson Jacobians of reducible curves
dc.typetext

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