Generic positivity and foliations in positive characteristic
Generic positivity and foliations in positive characteristic
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DOI：
10.1016/j.aim.2015.02.015
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发表时间：
2015-06-04
影响因子：
1.7
通讯作者：
Langer, Adrian
中科院分区：
文献类型：
--
作者：
Langer, Adrian
证明了非直圆Calabi-Yau簇的切丛的通有半正性。我们还构造了一个特征为零的nef线丛的例子，它的每一个正特征约化都不是nef。(C)2015 Elsevier Inc. All rights reserved.
We prove generic semipositivity of the tangent bundle of a non-uniruled Calabi-Yau variety in positive characteristic. We also construct an example of a nef line bundle in characteristic zero, whose each reduction to positive characteristic is not nef. (C) 2015 Elsevier Inc. All rights reserved.