Modulus of a rational map into a commutative algebraic group
Modulus of a rational map into a commutative algebraic group
复制标题
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
中科院分区:
文献类型:
--
作者:
Kazuya Kato;Henrik Russell
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.