Virtual moduli cycles and Gromov-Witten invariants of algebraic varieties

Virtual moduli cycles and Gromov-Witten invariants of algebraic varieties
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DOI:
10.1090/s0894-0347-98-00250-1
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发表时间:
1996-02
影响因子:
3.9
通讯作者:
Jun Li;G. Tian
Jun Li;G. Tian
中科院分区:
数学1区
文献类型:
--
作者:
Jun Li;G. Tian

文献摘要

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我们介绍了一种构建与切线障碍复合体相关的任何方案的虚拟循环的方法。我们应用这种方法来构造从 n 点亏格 g 曲线到任何平滑射影簇的稳定映射模的虚拟模环。作为一个应用,我们给出了任何平滑射影簇的 GW 不变量的代数定义。
We introduce a method of constructing the virtual cycle of any scheme associated with a tangent-obstruction complex. We apply this method to constructing the virtual moduli cycle of the moduli of stable maps from n-pointed genus g curves to any smooth projective variety. As an application, we give an algebraic definition of GW-invariants for any smooth projective variety.