English

Detecting Golodness via Gr\"obner Degeneration

Commutative Algebra 2022-02-10 v1

Abstract

In this paper we study the extent to which Golodness may be transferred along morphisms of DG-algebras. In particular, we show that if II is a so-called fiber invariant ideal, then Golodness of II is equivalent to Golodness of the initial ideal of II. We use this to transfer Golodness results for monomial ideals to more general classes of ideals. We also prove that any so-called rainbow monomial ideal with linear resolution defines a Golod ring; this result encompasses and generalizes many known Golodness results for classes of monomial ideals. We then combine the techniques developed to give a concise proof that maximal minors of (sparse) generic matrices define Golod rings, independent of characteristic.

Keywords

Cite

@article{arxiv.2202.04260,
  title  = {Detecting Golodness via Gr\"obner Degeneration},
  author = {Keller VandeBogert},
  journal= {arXiv preprint arXiv:2202.04260},
  year   = {2022}
}

Comments

14 pages

R2 v1 2026-06-24T09:27:39.961Z