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arXiv 2106.01460math.NT
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特征为0的全分歧$C_p^2$ -扩张的Galois支架和Galois模结构

Galois Scaffolds and Galois Module Structure for Totally Ramified $C_p^2$-Extensions in Characteristic 0

Kevin Keating, Paul Schwartz

摘要:

最近,人们做了大量的工作来研究局部域扩张的伽罗瓦模结构,特别是通过使用伽罗瓦支架。给定局部域$L/K$的一个完全分歧的$p$ -扩展,伽罗瓦支架给出了$K[G]$的一个$K$ -基,它对$L$的元素赋值的影响很容易确定。2013年,N. P. Byott和G.G. Elder给出了$p^2$在特征$p$中循环扩张的Galois支架存在的充分条件.我们采取他们的工作,并适应它的循环扩展度$p^2$的特征$0$。

英文摘要:

Recently, much work has been done to investigate Galois module structure of local field extensions, particularly through the use of Galois scaffolds. Given a totally ramified $p$-extension of local fields $L/K$, a Galois Scaffold gives us a $K$-basis for $K[G]$ whose effect on the valuation of elements of $L$ is easy to determine. In 2013, N.P. Byott and G.G. Elder gave sufficient conditions for the existence of Galois scaffolds for cyclic extensions of degree $p^2$ in characteristic $p$. We take their work and adapt it to cyclic extensions of degree $p^2$ in characteristic $0$.

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。

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