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.
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