Surfaces with canonical map of maximum degree

IF 0.9 1区数学 Q2 MATHEMATICS

Journal of Algebraic Geometry Pub Date : 2019-03-07 DOI:10.1090/JAG/761

Carlos Rito

引用次数: 15

Abstract

We use the Borisov-Keum equations of a fake projective plane and the Borisov-Yeung equations of the Cartwright-Steger surface to show the existence of a regular surface with canonical map of degree 36 and of an irregular surface with canonical map of degree 27. As a by-product, we get equations (over a finite field) for the Z / 3 \mathbb {Z}/3 -invariant fibres of the Albanese fibration of the Cartwright-Steger surface and show that they are smooth.

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具有最大度正则映射的曲面

利用伪投影平面的Borisov-Keum方程和Cartwright-Steger曲面的Borisov-Yeung方程，证明了具有36次正则映射的正则曲面和具有27次正则映射的不规则曲面的存在性。作为一个副产品，我们得到了Cartwright-Steger表面的Albanese纤维的Z /3 \mathbb {Z}/3不变纤维的方程(在有限域上)，并证明它们是光滑的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Algebraic Geometry 数学-数学

CiteScore

2.70

自引率

5.60%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Algebraic Geometry is devoted to research articles in algebraic geometry, singularity theory, and related subjects such as number theory, commutative algebra, projective geometry, complex geometry, and geometric topology. This journal, published quarterly with articles electronically published individually before appearing in an issue, is distributed by the American Mathematical Society (AMS). In order to take advantage of some features offered for this journal, users will occasionally be linked to pages on the AMS website.