Modulus of a rational map into a commutative algebraic group

Modulus of a rational map into a commutative algebraic group
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有理映射到交换代数群的模

DOI:
10.1215/0023608x-2010-006
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发表时间:
2010
影响因子:
0.6
通讯作者:
Henrik Russell
Henrik Russell
中科院分区:
数学4区
文献类型:
--
作者:
Kazuya Kato;Henrik Russell

文献摘要

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对于从正规代数簇$X$到交换代数群$G$的有理映射$\phi:X \到G$,我们定义$\phi$的模为$X$上的有效因子。我们研究了模量的性质。这项工作将已知的曲线理论推广到更高维的品种。
For a rational map $\phi: X \to G$ from a normal algebraic variety $X$ to a commutative algebraic group $G$, we define the modulus of $\phi$ as an effective divisor on $X$. We study the properties of the modulus. This work generalizes the known theories for curves to higher dimensional varieties.