Rank of divisors on hyperelliptic curves and graphs under specialization

Rank of divisors on hyperelliptic curves and graphs under specialization
复制标题

特化下超椭圆曲线和图的除数等级

DOI:
10.1093/imrn/rnu059
复制
发表时间:
2015
期刊:
Int. Math. Res. Not.
影响因子:
--
通讯作者:
Shu Kawaguchi and Kazuhiko Yamaki
Shu Kawaguchi and Kazuhiko Yamaki
中科院分区:
--
文献类型:
--
作者:
元結 啓仁;李 智蓮;谷内 敏之;高橋 竜太;リップマー ミック;辛 埴;大日方絢,早川大智,日比野有岐,小山知弘,三輪一元,小野新平,千葉大地;Shu Kawaguchi and Kazuhiko Yamaki

文献摘要

相似文献

设(G,ω)为genusg≥2的超椭圆顶点加权图。在具有约简图(G,ω)的完全离散估值域上,我们给出了(G,ω)的一个刻划,对于该刻划存在一个属的光滑投影曲线,使得任意因子的秩在专门化下保持不变。一般来说,对于给定的顶点加权图(G,ω),我们解释了这样的x的存在性如何与xand (G,ω)的Riemann-Roch公式相关联,以及这样的x的存在性如何与Caporaso问题相关联。
Let (G,ω) be a hyperelliptic vertex-weighted graph of genusg≥2. We give a characterization of (G,ω) for which there exists a smooth projective curveXof genusgover a complete discrete valuation field with reduction graph (G,ω) such that the ranks of any divisors are preserved under specialization. We explain, for a given vertex-weighted graph (G,ω) in general, how the existence of suchXrelates the Riemann–Roch formulae forXand (G,ω), and also how the existence of suchXis related to a problem by Caporaso.