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arXiv 1012.3107math.DG
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锥变换下Hermitian-Yang-Mills度量的存在性

Existence of Hermitian-Yang-Mills metrics under conifold transitions

Ming-Tao Chuan

摘要:

我们首先研究了Hermitian-Yang-Mills度量序列关于Calabi-Yau三重$\hat{X}$上的平衡度量序列的退化,该平衡度量序列退化为Fu,Li和Yau在$\hat{X}$上的多条(-1,-1)-曲线的补上构造的平衡度量.然后在一定的假设下,证明了三重$X_t$上平凡正则丛的Hermitian-Yang-Mills度量的存在性,其中平凡正则丛是通过对$\hat{X}$进行锥变换得到的.

英文摘要:

We first study the degeneration of a sequence of Hermitian-Yang-Mills metrics with respect to a sequence of balanced metrics on a Calabi-Yau threefold $\hat{X}$ that degenerates to the balanced metric constructed by Fu, Li, and Yau on the complement of finitely many (-1,-1)-curves in $\hat{X}$. Then under some assumptions we show the existence of Hermitian-Yang-Mills metrics on bundles over a family of threefolds $X_t$ with trivial canonical bundles obtained by performing conifold transitions on $\hat{X}$.

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