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arXiv 1504.04396math.AG
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环面爆破的量子上同调与Landau-Ginzburg对应

Quantum Cohomology of Toric Blowups and Landau-Ginzburg Correspondences

Pedro Acosta, Mark Shoemaker

摘要:

我们建立了Deligne-Mumford栈$[\mathbb{C}^N/G]$的等变Gromov-Witten理论与其原点爆破之间的亏格零对应。该关系将Coates-Iritani-Tseng和Coates-Ruan的crepant变换猜想推广到了使用渐近展开的不一致(非crepant)设置。利用这一结果与量子Serre对偶和MLK对应,我们证明了LG/Fano和LG/一般型对应的超曲面。

英文摘要:

We establish a genus zero correspondence between the equivariant Gromov-Witten theory of the Deligne-Mumford stack $[\mathbb{C}^N/G]$ and its blowup at the origin. The relationship generalizes the crepant transformation conjecture of Coates-Iritani-Tseng and Coates-Ruan to the discrepant (non-crepant) setting using asymptotic expansion. Using this result together with quantum Serre duality and the MLK correspondence we prove LG/Fano and LG/general type correspondences for hypersurfaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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