English

Integer-valued rational functions over globalized pseudovaluation domains

Commutative Algebra 2024-05-02 v2

Abstract

\DeclareMathOperator\IntRIntR\DeclareMathOperator{\IntR}{Int{}^\text{R}}\DeclareMathOperator\IntInt\DeclareMathOperator{\Int}{Int}Let DD be a domain. Park determined the necessary and sufficient conditions for which the ring of integer-valued polynomials \Int(D)\Int(D) is a globalized pseudovaluation domain (GPVD). In this work, we investigate the ring of integer-valued rational functions \IntR(D)\IntR(D). Since it is necessary that DD be a GPVD for \IntR(D)\IntR(D) to be a GPVD, we consider \IntR(D)\IntR(D), where DD is a GPVD. We determine that if DD is a pseudosingular GPVD, then \IntR(D)\IntR(D) is a GPVD. We also completely characterize when \IntR(D)\IntR(D) is a GPVD if DD is a pseudovaluation domain that is not a valuation domain.

Cite

@article{arxiv.2307.06446,
  title  = {Integer-valued rational functions over globalized pseudovaluation domains},
  author = {Baian Liu},
  journal= {arXiv preprint arXiv:2307.06446},
  year   = {2024}
}

Comments

arXiv admin note: text overlap with arXiv:2306.16385, arXiv:2208.09935

R2 v1 2026-06-28T11:28:56.379Z