Gauss-Manin system and the virtual structure constants

Gauss-Manin system and the virtual structure constants
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高斯-马宁系统和虚拟结构常数

DOI:
10.1142/s0129167x02001368
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发表时间:
2001
期刊:
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影响因子:
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通讯作者:
Masao Jinzenji
Masao Jinzenji
中科院分区:
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文献类型:
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作者:
Masao Jinzenji

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本文讨论了Givental微分方程在射影超曲面中有理曲线计数问题中的一些应用。利用这种方法,我们证明了前一篇文章中提出的关于射影超曲面的量子上同调结构常数的一些结果。进一步阐明了当射影超曲面为Calabi-Yau型或一般型时,虚结构常数与Givental微分方程的对应关系。
In this paper, we discuss some applications of Givental’s differential equations to enumerative problems on rational curves in projective hypersurfaces. Using this method, we prove some of the conjectures on the structure constants of quantum cohomology of projective hypersurfaces, proposed in our previous article. Moreover, we clarify the correspondence between the virtual structure constants and Givental’s differential equations when the projective hypersurface is Calabi-Yau or general type.