Newton polygons arising from special families of cyclic covers of the projective line
Newton polygons arising from special families of cyclic covers of the projective line
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由射影线循环覆盖的特殊族产生的牛顿多边形
DOI:
10.1007/s40993-018-0149-3
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发表时间:
2019
影响因子:
0.8
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
By a result of Moonen, there are exactly 20 positive-dimensional families of cyclic covers of the projective line for which the Torelli image is open and dense in the associated Shimura variety. For each of these, we compute the Newton polygons, and the-ordinary Ekedahl–Oort type, occurring in the characteristicpreduction of the Shimura variety. We prove that all but a few of the Newton polygons appear on the open Torelli locus. As an application, we produce multiple new examples of Newton polygons and Ekedahl–Oort types of Jacobians of smooth curves in characteristicp. Under certain congruence conditions onp, these include: the supersingular Newton polygon for genus 5, 6, 7; fourteen new non-supersingular Newton polygons for genus 5–7; eleven new Ekedahl–Oort types for genus 4–7 and, for all, the Newton polygon withp-rankwith slopes 1 / 6 and 5 / 6.
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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
DOI:
10.1515/crll.1999.509.67
发表时间:
1999
期刊:
Journal für die reine und angewandte Mathematik (Crelles Journal)
影响因子:
--
作者:
G. Shimura
通讯作者:
G. Shimura