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arXiv math/9903034math.AGhep-th
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Calabi-Yau 3-fold上的阻塞丛

An obstructed bundle on a Calabi-Yau 3-fold

R. P. Thomas

摘要:

镜像对称表明,在卡-丘3重模空间上,稳定丛,特别是那些度为0且不可分的陈类,可能是光滑的(即无障碍的,尽管可能维数太高)。这是因为镜面中平滑嵌入的特殊拉格朗日循环具有无阻碍的变形。由于文献中似乎没有反例,我们在这里提供了一个反例,表明这样的Tian-Todorov-McLean型结果不能成立。

英文摘要:

Mirror symmetry suggests that on a Calabi-Yau 3-fold moduli spaces of stable bundles, especially those with degree zero and indivisible Chern class, might be smooth (i.e. unobstructed, though perhaps of too high a dimension). This is because smoothly embedded special lagrangian cycles in the mirror have unobstructed deformations. As there does not seem to be a counterexample in the literature we provide one here, showing that such a Tian-Todorov-McLean-type result cannot hold.

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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