Morphisms represented by monomorphisms with n-torsionfree cokernel
Representation Theory
2022-03-11 v1 Commutative Algebra
Abstract
We introduce and study a new class of morphisms which includes morphisms represented by monomorphisms in the sense of Auslander and Bridger. As an application, we give not only an extension of Kato's theorem on morphisms represented by monomorphisms, but also a common generalization of several results due to Auslander and Bridger that describe relationships between torsionfreeness and the grades of Ext modules.
Cite
@article{arxiv.2203.04436,
title = {Morphisms represented by monomorphisms with n-torsionfree cokernel},
author = {Yuya Otake},
journal= {arXiv preprint arXiv:2203.04436},
year = {2022}
}
Comments
15 pages