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arXiv 1409.6263math.AG
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有理曲线上秩为2的抛物向量丛模空间的双有理几何

Birational geometry of the moduli space of rank 2 parabolic vector bundles on a rational curve

Han-Bom Moon, Sang-Bum Yoo

摘要:

研究了有理曲线上秩为2的半稳定抛物向量丛的模空间的双有理几何(Mori程序意义下).我们计算了模空间的有效锥,并证明了由Mori程序得到的所有双有理模型也是具有一定抛物权的抛物向量丛的模空间。

英文摘要:

We investigate the birational geometry (in the sense of Mori's program) of the moduli space of rank 2 semistable parabolic vector bundles on a rational curve. We compute the effective cone of the moduli space and show that all birational models obtained by Mori's program are also moduli spaces of parabolic vector bundles with certain parabolic weights.

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