A lower bound on Seshadri constants of hyperplane bundles on threefolds

A lower bound on Seshadri constants of hyperplane bundles on threefolds
复制标题

三重超平面丛Seshadri常数的下界

DOI:
10.1007/s00209-009-0475-1
复制
发表时间:
2008
影响因子:
0.8
通讯作者:
Kungho Chan
Kungho Chan
中科院分区:
数学2区
文献类型:
--
作者:
Kungho Chan

文献摘要

被引文献

相似文献

对于三折线丛非常充足的情形,我们给出了Seshadri常数的下界。我们考虑了Seshadri常数严格小于2时的情形,给出了奇异曲面的Bauer定理的一个版本(Math Ann 313(3):547-583,1999,定理2.1),从而证明了光滑三重曲面的相同结果。
We give the lower bound on Seshadri constants for the case of very ample line bundles on threefolds. We consider the situation when the Seshadri constant is strictly less than 2 and give a version of Bauer’s theorem (Math Ann 313(3):547–583, 1999, Theorem 2.1) for singular surfaces so we can prove the same result for smooth threefolds.