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arXiv math/0512527math.AG
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指数为2的log del Pezzo曲面方程

Equations of log del Pezzo surfaces of index 2

Grzegorz Kapustka, Michal Kapustka

摘要:

C上对数末端奇点指数为\le 2的Del Pezzo曲面由Alekseev和Nikulin分类。在本文中,对于这些曲面中的每一个,我们找到一个适当的态射到射影空间。这些态射使我们能够在某些加权射影空间中用方程描述指数为\le 2的del Pezzo曲面。得到的结果是自然完成的类似结果的杜瓦尔,和Hidaka和渡边,描述德尔佩佐表面的指数为1。

英文摘要:

Del Pezzo surfaces over C with log terminal singularities of index \le 2 were classified by Alekseev and Nikulin. In this paper, for each of these surfaces, we find an appropriate morphism to projective space. These morphisms enable us to describe del Pezzo surfaces of index \le 2 by equations in some weighted projective space. Obtained results are natural completions of similar results of Du Val, and Hidaka and Watanabe, describing del Pezzo surfaces of index 1.

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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