Index 1 covers of log terminal surface sigularities

1998/02/09 by Yūjirō Kawamata, Yujiro Kawamata, Kawamata, Yujiro · 1 citation
Computer Science · Mathematics · #Algebraic Geometry (math.AG) #Algebraic Geometry and Number Theory #FOS: Mathematics #Geometric and Algebraic Topology #Polynomial and algebraic computation #math.AG

paper · pdf · doi:10.48550/arxiv.math/9802044

8 pages, AMS-TEX

arxiv created 1998/02/09 · openalex publication_date 1998/02/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We shall investigate index 1 covers of 2-dimensional log terminal singularities. The main result is that the index 1 cover is canonical if the characteristic of the base field is different from 2 or 3. We also give some counterexamples in the case of characteristic 2 or 3. By using this result, we correct an error in a previous paper.

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