New Points on Curves

New Points on Curves
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曲线上的新点

DOI:
10.4064/aa170322-23-8
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发表时间:
2017
期刊:
arXiv: Number Theory
影响因子:
--
通讯作者:
Dino J. Lorenzini
Dino J. Lorenzini
中科院分区:
--
文献类型:
--
作者:
Qing Liu;Dino J. Lorenzini

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设K是域,L/K是有限扩张。设X/K是有限类型的格式。如果X(L)的一个点不属于X(F)的并,当F遍历L的所有真子扩张时,称它是新的.本文研究了亏格g(L)中是否存在光滑的具有新点的亏格的真几何连通曲线.例如,如果K是特征不同于2的无穷大,且g大于或等于[d/4],则存在无穷多条亏格为g的超椭圆曲线X/K,它们在K的代数闭包上两两非同构,并且在X中有一个新的点(L)。当d在1到10之间时,我们证明了存在无穷多条椭圆曲线X/K,它们具有两两不同的j-不变量,并且在X中有一个新的点(L)。
Let K be a field and let L/K be a finite extension. Let X/K be a scheme of finite type. A point of X(L) is said to be new if it does not belong to the union of X(F), when F runs over all proper subextensions of L. Fix now an integer g>0 and a finite separable extension L/K of degree d. We investigate in this article whether there exists a smooth proper geometrically connected curve of genus g with a new point in X(L). We show for instance that if K is infinite of characteristic different from 2 and g is bigger or equal to [d/4], then there exist infinitely many hyperelliptic curves X/K of genus g, pairwise non-isomorphic over the algebraic closure of K, and with a new point in X(L). When d is between 1 and 10, we show that there exist infinitely many elliptic curves X/K with pairwise distinct j-invariants and with a new point in X(L).
关于分圆 Zp 扩展中椭圆曲线 Mordell-Weil 秩增长的注记
DOI: --
发表时间: 2003
期刊: Proc. Japan Acad. 79 Ser. A
影响因子: --
作者:
Matsuno;Kazuo
通讯作者: Kazuo