English

Cohen-Macaulay and Gorenstein properties under the amalgamated construction

Commutative Algebra 2014-12-09 v3

Abstract

Let AA and BB be commutative rings with unity, f:ABf:A\to B a ring homomorphism and JJ an ideal of BB. Then the subring AfJ:={(a,f(a)+j)aAA\bowtie^fJ:=\{(a,f(a)+j)|a\in A and jJ}j\in J\} of A×BA\times B is called the amalgamation of AA with BB along with JJ with respect to ff. In this paper, among other things, we investigate the Cohen-Macaulay and (quasi-)Gorenstein properties on the ring AfJA\bowtie^fJ.

Keywords

Cite

@article{arxiv.1406.2145,
  title  = {Cohen-Macaulay and Gorenstein properties under the amalgamated construction},
  author = {P. Sahandi and N. Shirmohammadi and S. Sohrabi},
  journal= {arXiv preprint arXiv:1406.2145},
  year   = {2014}
}

Comments

13 pages, final version

R2 v1 2026-06-22T04:33:54.346Z