English

The polynomial closure is not topological

Commutative Algebra 2022-05-18 v2

Abstract

We characterize the polynomial closure of a pseudo-convergent sequence in a valuation domain VV of arbitrary rank, and then we use this result to show that the polynomial closure is never topological when VV has rank at least 22.

Cite

@article{arxiv.2107.02552,
  title  = {The polynomial closure is not topological},
  author = {Giulio Peruginelli and Dario Spirito},
  journal= {arXiv preprint arXiv:2107.02552},
  year   = {2022}
}

Comments

to appear in the Journal of Pure and Applied Algebra

R2 v1 2026-06-24T03:55:45.110Z