A note on elliptic k3 surfaces
A note on elliptic k3 surfaces
复制标题
关于椭圆 k3 曲面的注释
DOI:
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
J. Keum
中科院分区:
文献类型:
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作者:
J. Keum
. 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.