On descending cohomology geometrically
On descending cohomology geometrically
复制标题
几何上的降上同调
DOI:
10.1112/s0010437x17007151
复制
发表时间:
2017
影响因子:
1.8
通讯作者:
Achter J
中科院分区:
文献类型:
--
作者:
Achter J
In this paper, motivated by a problem posed by Barry Mazur, we show that for smooth projective varieties over the rationals, the odd cohomology groups of degree less than or equal to the dimension can be modeled by the cohomology of an abelian variety, provided the geometric coniveau is maximal. This provides an affirmative answer to Mazur’s question for all uni-ruled threefolds, for instance. Concerning cohomology in degree three, we show that the image of the Abel–Jacobi map admits a distinguished model over the rationals.
登录
查看更多内容
影响因子:
1.8
作者:
S. Gorchinskiy;V. Guletskiĭ
通讯作者:
V. Guletskiĭ
影响因子:
3.1
作者:
J. Milne
通讯作者:
J. Milne
影响因子:
3.1
作者:
C. Voisin
通讯作者:
C. Voisin
影响因子:
1
作者:
J. Milne
通讯作者:
J. Milne
影响因子:
1.8
作者:
S. Abdulali
通讯作者:
S. Abdulali