Newton Polygon Stratification of the Torelli Locus in Unitary Shimura Varieties
Newton Polygon Stratification of the Torelli Locus in Unitary Shimura Varieties
复制标题
酉志村品种 Torelli 轨迹的牛顿多边形分层
DOI:
10.1093/imrn/rnaa306
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发表时间:
2020
影响因子:
1
通讯作者:
Tang, Yunqing
中科院分区:
文献类型:
--
作者:
Li, Wanlin;Mantovan, Elena;Pries, Rachel;Tang, Yunqing
We study the intersection of the Torelli locus with the Newton polygon stratification of the moduloreduction of certain Shimura varieties. We develop a clutching method to show that the intersection of the open Torelli locus with some Newton polygon strata is non-empty. This allows us to give a positive answer, under some compatibility conditions, to a question of Oort about smooth curves in characteristicwhose Newton polygons are an amalgamate sum. As an application, we produce infinitely many new examples of Newton polygons that occur for smooth curves that are cyclic covers of the projective line. Most of these arise in inductive systems that demonstrate unlikely intersections of the open Torelli locus with the Newton polygon stratification in Siegel modular varieties. In addition, for the 20 special Shimura varieties found in Moonen’s work, we prove that all Newton polygon strata intersect the open Torelli locus (ifin the supersingular cases).
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影响因子:
0.8
作者:
Li, Wanlin;Mantovan, Elena;Pries, Rachel;Tang, Yunqing
通讯作者:
Tang, Yunqing
影响因子:
1.7
作者:
Jeff Achter;R. Pries
通讯作者:
R. Pries
影响因子:
1.7
作者:
E. Eischen;E. Mantovan
通讯作者:
E. Eischen;E. Mantovan
DOI:
10.1016/j.ansens.2003.04.004
发表时间:
2002
影响因子:
1.9
作者:
B. Moonen
通讯作者:
B. Moonen
DOI:
--
发表时间:
1969
期刊:
影响因子:
--
作者:
W. Fulton
通讯作者:
W. Fulton