English

Connectedness and integrally closed local overrings of two-dimensional regular local rings

Commutative Algebra 2024-06-18 v1

Abstract

Let DD be a two-dimensional regular local ring. We prove there is a one-to-one correspondence between closed connected sets in the space of valuation overrings of DD that dominate DD and the integrally closed local overrings of DD that are not essential valuation rings or divisorial valuation rings of DD.

Keywords

Cite

@article{arxiv.2406.10966,
  title  = {Connectedness and integrally closed local overrings of two-dimensional regular local rings},
  author = {William Heinzer and K. Alan Loper and Bruce Olberding and Matt Toeniskoetter},
  journal= {arXiv preprint arXiv:2406.10966},
  year   = {2024}
}

Comments

19 pages. Comments welcome!