arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2005.09970math.NTmath.OA
收藏

阿贝尔簇的Shafarevich-Tate群

Shafarevich-Tate groups of abelian varieties

Igor V. Nikolaev

AI总结:

该研究借助阿贝尔簇与高维非交换环面的对应,推导了阿贝尔簇的Shafarevich-Tate群的两种同构结构,并详细探讨了带复乘的椭圆曲线的相关情形。

摘要:

Shafarevich-Tate群$W(\mathscr{A})$用于衡量阿贝尔簇$\mathscr{A}$的Hasse原理失效程度。利用阿贝尔簇与高维非交换环面之间的对应关系,我们证明$W(\mathscr{A})\cong Cl~(Λ)\oplus Cl~(Λ)$,或$W(\mathscr{A})\cong \left(\mathbf{Z}/2^k\mathbf{Z}\right) \oplus Cl_{~\mathbf{odd}}~(Λ)\oplus Cl_{~\mathbf{odd}}~(Λ)$,其中$Cl~(Λ)$是与非交换环面K-理论相关的环$Λ$的理想类群,且$2^k$整除$Cl~(Λ)$的阶。我们还详细研究了带复乘的椭圆曲线的情形。

英文摘要:

The Shafarevich-Tate group $W (\mathscr{A})$ measures the failure of the Hasse principle for an abelian variety $\mathscr{A}$. Using a correspondence between the abelian varieties and the higher dimensional non-commutative tori, we prove that $W (\mathscr{A})\cong Cl~(Λ)\oplus Cl~(Λ)$ or $W (\mathscr{A})\cong \left(\mathbf{Z}/2^k\mathbf{Z}\right) \oplus Cl_{~\mathbf{odd}}~(Λ)\oplus Cl_{~\mathbf{odd}}~(Λ)$, where $Cl~(Λ)$ is the ideal class group of a ring $Λ$ associated to the K-theory of the non-commutative tori and $2^k $ divides the order of $Cl~(Λ)$. The case of elliptic curves with complex multiplication is considered in detail.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑