Computing the geometric endomorphism ring of a genus-2 Jacobian

Computing the geometric endomorphism ring of a genus-2 Jacobian
复制标题

计算 genus-2 雅可比行列式的几何自同态环

DOI:
10.1090/mcom/3358
复制
发表时间:
2016
期刊:
Math. Comput.
影响因子:
--
通讯作者:
D. Lombardo
D. Lombardo
中科院分区:
--
文献类型:
--
作者:
D. Lombardo

文献摘要

参考文献

被引文献

相似文献

我们描述了一种基于 Frobenius 特征多项式的属性的算法,当 $A$ 是数域 $K$ 上漂亮的 genus-2 曲线的雅可比行列式时,计算 $\operatorname{End}_{\overline{K}}(A)$。我们使用该算法来确认LMFDB($L$函数和模形式数据库)中给出的$\operatorname{Jac}(C)$几何同态环结构的描述对于当前列出的所有属2曲线$C$都是正确的。我们还讨论了一些特殊情况下自同态定义域的确定。
We describe an algorithm, based on the properties of the characteristic polynomials of Frobenius, to compute $\operatorname{End}_{\overline{K}}(A)$ when $A$ is the Jacobian of a nice genus-2 curve over a number field $K$. We use this algorithm to confirm that the description of the structure of the geometric endomorphism ring of $\operatorname{Jac}(C)$ given in the LMFDB ($L$-functions and modular forms database) is correct for all the genus 2 curves $C$ currently listed in it. We also discuss the determination of the field of definition of the endomorphisms in some special cases.
雅可比行列式自同态环的严格计算
DOI: 10.1090/mcom/3373
发表时间: 2019
影响因子: 2
作者:
Costa, Edgar;Mascot, Nicolas;Sijsling, Jeroen;Voight, John
通讯作者: Voight, John
DOI: 10.1112/s146115701600019x
发表时间: 2016-01-01
影响因子: --
作者:
Booker, Andrew R.;Sijsling, Jeroen;Yasaki, Dan
通讯作者: Yasaki, Dan