Kodaira-type classification of singular fibers of some minimal abelian fibrations

Fuente: arXiv
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Main Author: Kim, Yoon-Joo
Format: Preprint
Published: 2026
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author Kim, Yoon-Joo
author_facet Kim, Yoon-Joo
contents Let $X \to S$ be a minimal abelian fibration of relative dimension $n$ over a curve. We classify all possible singular fibers $X_s$ having $(n-1)$-dimensional ``abelian variety parts''. This generalizes Kodaira's work on elliptic fibrations, and Matsushita and Hwang--Oguiso's work on Lagrangian fibrations into a single framework. The classification is divided into three parts: semistable, unstable, and multiple. Multiple fibers are again divided into three types: semistable-like, mixed, and unstable-like.
format Preprint
id arxiv_https___arxiv_org_abs_2603_02347
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Kodaira-type classification of singular fibers of some minimal abelian fibrations
Kim, Yoon-Joo
Algebraic Geometry
Let $X \to S$ be a minimal abelian fibration of relative dimension $n$ over a curve. We classify all possible singular fibers $X_s$ having $(n-1)$-dimensional ``abelian variety parts''. This generalizes Kodaira's work on elliptic fibrations, and Matsushita and Hwang--Oguiso's work on Lagrangian fibrations into a single framework. The classification is divided into three parts: semistable, unstable, and multiple. Multiple fibers are again divided into three types: semistable-like, mixed, and unstable-like.
title Kodaira-type classification of singular fibers of some minimal abelian fibrations
topic Algebraic Geometry
url https://arxiv.org/abs/2603.02347