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arXiv 0905.0537math.AGhep-th
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多面体奇点分解的BPS不变量

BPS invariants for resolutions of polyhedral singularities

Jim Bryan, Amin Gholampour

摘要:

本文研究了由Nakamura的G-Hilbert格式给出的ADE多面体奇点C^3/G的首选Calabi-Yau分解的BPS不变量。亏格0 BPS不变量是由Sheldon Katz提出的扭层的模空间定义的。我们证明了这些不变量等于与G相关联的ADE根系的某些正根的数目的一半。这与Gromov-Witten理论的预测一致。

英文摘要:

We study the BPS invariants of the preferred Calabi-Yau resolution of ADE polyhedral singularities C^3/G given by Nakamura's G-Hilbert schemes. Genus 0 BPS invariants are defined by means of the moduli space of torsion sheaves as proposed by Sheldon Katz. We show that these invariants are equal to half the number of certain positive roots of an ADE root system associated to G. This is in agreement with the prediction via Gromov-Witten theory.

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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