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arXiv 1310.7877math.AGhep-thmath.RT
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曲面奇异变形的混合辫群作用

Mixed braid group actions from deformations of surface singularities

Will Donovan, Ed Segal

摘要:

我们考虑了一组环面的卡-丘品种所产生的变形的小决议的A型表面奇点。通过仔细分析B膜输运在相应的GLSM中的性质,我们预言了在每个簇的导出范畴上存在一个混合辫群作用,并证明了这个作用确实存在.这推广了Seidel和Thomas对未变形分解发现的辫群作用。我们还表明,不同的变形的行动是相关的,在某种程度上,是预测的物理学。

英文摘要:

We consider a set of toric Calabi-Yau varieties which arise as deformations of the small resolutions of type A surface singularities. By careful analysis of the heuristics of B-brane transport in the associated GLSMs, we predict the existence of a mixed braid group action on the derived category of each variety, and then prove that this action does indeed exist. This generalizes the braid group action found by Seidel and Thomas for the undeformed resolutions. We also show that the actions for different deformations are related, in a way that is predicted by the physical heuristics.

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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