English

When every principal ideal is flat

Commutative Algebra 2011-09-26 v2

Abstract

This paper deals with well-known notion of PFPF-rings, that is, rings in which principal ideals are flat. We give a new characterization of PFPF-rings. Also, we provide a necessary and sufficient condition for RIR\bowtie I (resp., R/IR/I when RR is a Dedekind domain or II is a primary ideal) to be PFPF-ring. The article includes a brief discussion of the scope and precision of our results.

Keywords

Cite

@article{arxiv.1012.2538,
  title  = {When every principal ideal is flat},
  author = {Fatima Cheniour and Najib Mahdou},
  journal= {arXiv preprint arXiv:1012.2538},
  year   = {2011}
}
R2 v1 2026-06-21T16:57:16.675Z