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arXiv math/0009126math.AG
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有理曲面上的有穷级自同构

Automorphisms of Finite Order on Rational Surfaces

D. -Q. Zhang

摘要:

对光滑有理射影曲面X的极小对(X,G)和X上自同构的有限群G进行了分类.我们还确定了固定轨迹X^G和商曲面Y = X/G以及Y的光滑部分的基本群。每一对的实现都包括在内。森的极值射线理论和最近的结果阿列克谢耶夫也Ambro的存在良好的反典范除子。

英文摘要:

We classify minimal pairs (X, G) for smooth rational projective surface X and finite group G of automorphisms on X. We also determine the fixed locus X^G and the quotient surface Y = X/G as well as the fundamental group of the smooth part of Y. The realization of each pair is included. Mori's extremal ray theory and recent results of Alexeev and also Ambro on the existence of good anti-canonical divisors are used.

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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