English

Algebraically closed $\sigma$-fields

Rings and Algebras 2025-11-11 v1

Abstract

The concept of a skew root of a skew polynomial is used to introduce notions of algebraic closedness for σ\sigma-fields, that is, a field equipped with an endomorphism. It is shown that every σ\sigma-field can be embedded in algebraically closed σ\sigma-fields of different types.

Keywords

Cite

@article{arxiv.2206.06042,
  title  = {Algebraically closed $\sigma$-fields},
  author = {Masood Aryapoor},
  journal= {arXiv preprint arXiv:2206.06042},
  year   = {2025}
}