Maps onto certain Fano threefolds

Maps onto certain Fano threefolds
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映射到某些法诺三重

DOI:
10.4171/dm/28
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发表时间:
1997
影响因子:
0.9
通讯作者:
E. Amerik
E. Amerik
中科院分区:
数学3区
文献类型:
--
作者:
E. Amerik

文献摘要

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相似文献

证明了如果X是b2=1的三重光滑射影,Y是b2=1的Fano三重射影,则对于非常数映射f:x!Y,f的次数是关于X和Y的离散不变量的有界的。同时,我们对某些Fano三折之间的映射得到了一些更强的限制。1991年数学科目授课:14E99、14J45
We prove that if X is a smooth projective threefold with b 2 = 1 and Y is a Fano threefold with b 2 = 1, then for a non-constant map f : X ! Y , the degree of f is bounded in terms of the discrete invariants of X and Y . Also, we obtain some stronger restrictions on maps between certain Fano threefolds. 1991 Mathematics Subject Classi cation: 14E99, 14J45