English

Partial Trace Ideals, Torsion and Canonical Module

Commutative Algebra 2022-07-08 v1

Abstract

For any finitely generated module MM with non-zero rank over a commutative one dimensional Noetherian local domain, the numerical invariant h(M)h(M) was introduced and studied in the author's previous work "Partial Trace Ideals and Berger's Conjecture". We establish a bound on it which helps capture information about the torsion submodule of MM when MM has rank one and it also generalizes the discussion in the mentioned previous article. We further study bounds and properties of h(M)h(M) in the case when MM is the canonical module ωR\omega_R. This in turn helps in answering a question of S. Greco and then provide some classifications. Most of the results in this article are based on the results presented in the author's doctoral dissertation "Partial Trace Ideals, The Conductor and Berger's Conjecture".

Keywords

Cite

@article{arxiv.2207.03243,
  title  = {Partial Trace Ideals, Torsion and Canonical Module},
  author = {Sarasij Maitra},
  journal= {arXiv preprint arXiv:2207.03243},
  year   = {2022}
}

Comments

14 pages, Comments are welcome

R2 v1 2026-06-24T12:17:08.433Z