English

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

Number Theory 2021-06-04 v1

Abstract

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 pp-extension of local fields L/KL/K, a Galois Scaffold gives us a KK-basis for K[G]K[G] whose effect on the valuation of elements of LL 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 p2p^2 in characteristic pp. We take their work and adapt it to cyclic extensions of degree p2p^2 in characteristic 00.

Keywords

Cite

@article{arxiv.2106.01460,
  title  = {Galois Scaffolds and Galois Module Structure for Totally Ramified $C_p^2$-Extensions in Characteristic 0},
  author = {Kevin Keating and Paul Schwartz},
  journal= {arXiv preprint arXiv:2106.01460},
  year   = {2021}
}