English

On commutativity of ideal extensions

Rings and Algebras 2013-05-15 v1

Abstract

In this paper we examine the commutativity of ideal extensions. We introduce methods of constructing such extensions, in particular we construct a noncommutative ring T which contains a central and idempotent ideal I such that T/I is a field. This answers a question from [2]. Moreover we classify fields of characteristic 0 which can be obtained as T/I for some T.

Keywords

Cite

@article{arxiv.1305.3024,
  title  = {On commutativity of ideal extensions},
  author = {Joachim Jelisiejew},
  journal= {arXiv preprint arXiv:1305.3024},
  year   = {2013}
}

Comments

7 pages

R2 v1 2026-06-22T00:16:01.721Z