Surfaces with many nodes

Surfaces with many nodes
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具有许多节点的曲面

DOI:
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发表时间:
2000
期刊:
arXiv: Algebraic Geometry
影响因子:
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通讯作者:
R. Pardini
R. Pardini
中科院分区:
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文献类型:
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作者:
I. Dolgachev;M. M. Lopes;R. Pardini

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本文描述了特征不等于2的代数闭域上的光滑有理射影代数曲面,其中包含$n \ge\b_2 -2$自交的光滑有理曲线,其中$\b_2$是第二Betti数.在最后一节中,我们将这一方法应用于研究具有p_g = 0$和K^2 = 8,9$的一般型极小复曲面,其中p_g = 0 $和K^2 = 8,9$允许2阶自同构。
We describe smooth rational projective algebraic surfaces over an algebraically closed field of characteristic different from 2 which contain $n \ge \b_2-2$ disjoint smooth rational curves with self-intersection -2, where $\b_2$ is the second Betti number. In the last section this is applied to the study of minimal complex surfaces of general type with $p_g = 0$ and $K^2 = 8, 9$ which admit an automorphism of order 2.