English

On the residue fields of Henselian valued stable fields, II

Rings and Algebras 2007-05-23 v1

Abstract

Let EE be a primarily quasilocal field, M/EM/E a finite Galois extension and DD a central division EE-algebra of index divisible by [M ⁣:E][M\colon E]. In addition to the main result of Part I, this part of the paper shows that if the Galois group G(M/E)G(M/E) is not nilpotent, then MM does not necessarily embed in DD as an EE-subalgebra. When EE is quasilocal, we find the structure of the character group of its absolute Galois group; this enables us to prove that if EE is strictly quasilocal and almost perfect, then the divisible part of the multiplicative group EE ^{\ast} equals the intersection of the norm groups of finite Galois extensions of EE.

Keywords

Cite

@article{arxiv.0704.1557,
  title  = {On the residue fields of Henselian valued stable fields, II},
  author = {I. D. Chipchakov},
  journal= {arXiv preprint arXiv:0704.1557},
  year   = {2007}
}

Comments

10 pages