Presentations of rings with a chain of semidualizing modules
Commutative Algebra
2016-11-07 v2
Abstract
Inspired by Jorgensen et. al., it is proved that if a Cohen--Macaulay local ring with dualizing module admits a suitable chain of semidualizing --modules of length , then for some Gorenstein ring and ideals of ; and, for each , the ring has some interesting cohomological properties . This extends the result of Jorgensen et. al., and also of Foxby and Reiten.
Keywords
Cite
@article{arxiv.1412.7465,
title = {Presentations of rings with a chain of semidualizing modules},
author = {Ensiyeh Amanzadeh and Mohammad T. Dibaei},
journal= {arXiv preprint arXiv:1412.7465},
year = {2016}
}
Comments
18 pages, To appear in Mathematica Scandinavica