English

On modules with finite reducing Gorenstein dimension

Commutative Algebra 2025-02-24 v1

Abstract

If MM is a nonzero finitely generated module over a commutative Noetherian local ring RR such that MM has finite injective dimension and finite Gorenstein dimension, then it follows from a result of Holm that MM has finite projective dimension, and hence a result of Foxby implies that RR is Gorenstein. We investigate whether the same conclusion holds for nonzero finitely generated modules that have finite injective dimension and finite reducing Gorenstein dimension, where the reducing Gorenstein dimension is a finer invariant than the classical Gorenstein dimension, in general.

Keywords

Cite

@article{arxiv.2103.00253,
  title  = {On modules with finite reducing Gorenstein dimension},
  author = {Tokuji Araya and Olgur Celikbas and Jesse Cook and Toshinori Kobayashi},
  journal= {arXiv preprint arXiv:2103.00253},
  year   = {2025}
}

Comments

9 pages

R2 v1 2026-06-23T23:34:10.948Z