A note on elliptic k3 surfaces

A note on elliptic k3 surfaces
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关于椭圆 k3 曲面的注释

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发表时间:
1999
期刊:
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通讯作者:
J. Keum
J. Keum
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文献类型:
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作者:
J. Keum

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.研究了椭圆K3曲面上的椭圆(cid:12)振动与其Jacobian曲面之间的关系。我们给出了一个明确的描述的Picard格的雅可比曲面。然后我们使用描述来证明某些K3曲面不允许非雅可比(cid:12)振动。此外,我们还得到了一个关于Picard格的行列式与可约(cid:12)bres的分支数的不等式,它意味着,如果椭圆K3曲面具有行列式较小的Picard格,则其上的每个椭圆(cid:12)bres必有一个可约(cid:12)bres.讨论了K3曲面的一些例子。
. We study the relationship between an elliptic (cid:12)bration on an elliptic K3 surface and its Jacobian surface. We give an explicit description of the Picard lattice of the Jacobian surface. Then we use the description to prove that certain K3 surfaces do not admit a non-Jacobian (cid:12)bration. Moreover, we obtain an inequality involving the determinant of the Picard lattice and the number of components of reducible (cid:12)bres, which implies, among others, that if an elliptic K3 surface has Picard lattice with relatively small determinant, then every elliptic (cid:12)bration on it must have a reducible (cid:12)bre. Some examples of K3 surfaces are discussed.