We characterize stable curves whose compactified degree- Jacobian is of Néron type. This means the following: for any one-parameter regular smoothing of , the special fiber of the Néron model of the Jacobian is isomorphic to a dense open subset of the degree- compactified Jacobian of . It is well known that compactified Jacobians of Néron type have the best modular properties, and that they are endowed with a mapping property useful for applications.
Cite this article
Lucia Caporaso, Compactified Jacobians of Néron type. Atti Accad. Naz. Lincei Cl. Sci. Fis. Mat. Natur. 23 (2012), no. 2, pp. 213–227DOI 10.4171/RLM/625