arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1105.3876math.NTmath.RT
收藏

整伽罗瓦模的指数公式

Index formulae for integral Galois modules

Alex Bartel, Bart de Smit

摘要:

我们证明了非常普遍的指数公式的积分伽罗瓦模,特别是单位的整数环的数域,高K-群的整数环,和Mordell-Weil群的椭圆曲线的数域。这些公式将相应的伽罗瓦模结构与其他算术不变量联系起来,例如类数,或Tamagawa数和Tate-Shafarevich群。这是一个推广的已知结果的单位,以其他伽罗瓦模块和更多的伽罗瓦群,并在同一时间的统一的方法迄今开发的情况下,单位。

英文摘要:

We prove very general index formulae for integral Galois modules, specifically for units in rings of integers of number fields, for higher K-groups of rings of integers, and for Mordell-Weil groups of elliptic curves over number fields. These formulae link the respective Galois module structure to other arithmetic invariants, such as class numbers, or Tamagawa numbers and Tate-Shafarevich groups. This is a generalisation of known results on units to other Galois modules and to many more Galois groups, and at the same time a unification of the approaches hitherto developed in the case of units.

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。

↑