English

Coherence conditions in flat regular pullbacks

Commutative Algebra 2015-06-18 v1

Abstract

We investigate the behavior of four coherent-like conditions in regular conductor squares. In particular, we find necessary and sufficient conditions in order that a pullback ring be a finite conductor ring, a coherent ring, a generalized GCD ring, or quasi-coherent ring. As an application of these results, we are able to determine exactly when the ring of integer-valued polynomials determined by a finite subset possesses one of the four coherent-like properties.

Keywords

Cite

@article{arxiv.1506.05389,
  title  = {Coherence conditions in flat regular pullbacks},
  author = {Jason Boynton and Sean Sather-Wagstaff},
  journal= {arXiv preprint arXiv:1506.05389},
  year   = {2015}
}

Comments

21 pages

R2 v1 2026-06-22T09:55:23.505Z