Relative semiampleness in mixed characteristic
Relative semiampleness in mixed characteristic
复制标题
混合特征的相对半丰度
DOI:
--
复制
发表时间:
2021
影响因子:
2.5
通讯作者:
J. Witaszek
中科院分区:
文献类型:
--
作者:
J. Witaszek
We show that a nef line bundle on a proper scheme over an excellent base is semiample if and only if it is semiample after restricting to characteristic zero and to positive characteristic. In the process of the proof, we provide a generalisation to mixed characteristic of the fact that the perfection of the Picard functor in positive characteristic is a stack in groupoids for the h-topology.
DOI:
10.1017/fmp.2023.6
发表时间:
2020-09
期刊:
Forum of Mathematics, Pi
影响因子:
--
作者:
Christopher D. Hacon;J. Witaszek
通讯作者:
Christopher D. Hacon;J. Witaszek
影响因子:
4.9
作者:
J. Witaszek
通讯作者:
J. Witaszek
影响因子:
2.5
作者:
Ma, Linquan;Schwede, Karl
通讯作者:
Schwede, Karl